Restoration of the chewing group of teeth with an anchor pin. Installation of anchor pin. What is a pin and why is it needed

Pin structures are made from various materials and are metallic and non-metallic.

Metal pins can be:

Titanium.
Brass.
From stainless steel.
Gold with impurities of other metals.
Palladium.

Non-metallic structures are:

Fiberglass.
Carbon fiber.
Ceramic.

Types of dental pins

The classification of dental pins depends on the material used and its characteristics:

The anchor rod is made of metal and is installed in an active or passive way.
The fiberglass pin is particularly elastic, which makes it easy to install and possible subsequent removal. In addition, this material is hypoallergenic and does not interact with foreign substances.
Carbon fiber pin constructions have among their advantages an extraordinary elasticity, which allows to reduce the load pressure on the tooth root and does not have a destructive effect on the tooth itself.
The parapulpal one consists of a metal alloy, and is covered with a polymer on top. It is mainly used for better adhesion of the filling material to the tooth cavity.

In addition to materials, tooth posts differ in shape and method of anchoring at the root.

The shape of the pin rods depends on the shape of a single root canal and can be of the following types:

conical;
cylindrical;
cylindrical-conical;
screw.

According to the fixation variations, the pins are divided into:

Active - equipped with a thread, thanks to which it is screwed into the root of the tooth. Used as a support for a full crown.
Passive - fixed in the root canal using special cement. The strength of this design is low, but the passive method of installation is more gentle on the tooth.

Which type to offer the patient, the dentist decides after examination and necessary research. An x-ray will definitely be taken to make sure that the bone is wide enough, into which the base for the prosthesis will be fixed.

A photo

Indications and contraindications

You can not independently decide on the installation of the pin. To do this, you first need to have evidence for it. These include:

destruction of the dental crown by 50 percent or more;
weakened condition of the tooth after undergoing dental treatment;
the need for prosthetics of the tooth, for which it is necessary to install a support;
extraction of the tooth for the duration of the treatment of the infection and its subsequent return to the hole.

The pin design cannot be installed if there are the following contraindications:

the width of the root canal wall is less than 2 mm;
active carious process in the oral cavity;
insufficient root length;
the impossibility of giving a cylindrical shape to the root canal;
complete destruction of the tooth crown;
violations of blood coagulation, including in women during menstruation;
the period of bearing a child;
mental health disorders;
acute processes in the periodontium;
cyst or granuloma in the mouth.

infozuby.ru

Fiberglass pins are an additional reinforcement used when composite restoration, is an analogue of building reinforcement. Composite restoration is performed when less than 50% of the tissues are left of the tooth, and the patient does not have enough money for a crown. To do this, the doctor removes everything carious cavities, gives the crown a certain shape, places a pin in a specially drilled channel and fixes the composite material on this pin.

In general, pins are made from different materials, most often from metal. However, fiberglass pins have several distinct advantages.

Advantages of fiberglass pins

No destruction of the tooth and composite material;
The elasticity of the post coincides with the elasticity of dentin, due to which the fiberglass post forms a single structure with composite cement and tooth tissues. Due to this, the chewing load is distributed evenly over the tooth. In the case of a metal pin, the load is only on certain areas, which leads to tooth fracture.
Fiberglass posts are non-allergenic, unlike metal posts, which often contain nickel and chromium;
Fiberglass posts are opaque and very close to enamel in color. This achieves a high aesthetic result and does not require additional funds disguises are not always effective.
Ease of removal - a fiberglass post is much easier to remove from a tooth than a metal post when needed.

Cons of fiberglass pins

Perhaps, fiberglass pins have only one drawback, but it is quite serious. Doctors calculated that in 15% of cases, the connection of the tooth tissues in the surface of the canal with the fiberglass pin is destroyed, which can completely break off the entire restoration. In this case, the work will have to be done again.

This can be avoided by contacting a highly qualified dentist and using quality material for the pin and its fixation.

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What is a pin and what is it for?

A pin is a dental structure, a kind of needle that serves to fix a destroyed or damaged tooth in the root canals. It allows you to restore the tooth, outer part which is saved by less than 20%.

The main requirements for installing the pin are:

1) Severe or complete destruction of the outer crown.

2) Prevention of the final destruction of hard tissue, especially after the treatment of caries or pulpitis.

3) Creating a support for a bridge or removable prosthesis, provided that the roots are preserved.

Especially often the basis is used for composite restoration. It eliminates most of the shortcomings of this imperfect recovery method. With a pin, restoration will be much easier. It will become a support for a new tooth and will allow it to cope with even the most serious loads. In addition, with a pin, there is no need to use a template and other improvised items to give artificial tooth natural look.

Advantages and disadvantages

The first and main advantage of such a dental structure is the ability to restore hard tissue even with severe destruction. In this case, the tooth itself will remain preserved. It does not have to be replaced by either implants or crowns. The pin will not only save it from removal, but also completely restore its aesthetic and chewing function.

This method completely preserves the root system of the molar or incisor, which eliminates contact foreign object with mucous. For people with intolerances or allergies to certain materials, this is especially important.

Another undoubted advantage is a long service life. Most manufacturers of such products give a guarantee of at least 10 years, but practice shows that the rod can last much longer. With proper care, the absence of excessive load and injury, the spoke will remain in working condition for all 20 years.

The rod is made from a variety of materials. Each of them has its own characteristics: strength, color, cost. You can choose a product that is perfect for a given situation.

Even for translucent ceramic prostheses, there is a support. An ordinary metal needle will not work here, especially if an incisor or canine is being restored. Everyone around will notice an incomprehensible metal object in the prosthesis. To prevent this, a fiberglass pin can be installed. This material has a white tint and will not spoil anything. general form prosthesis. Such aesthetic properties do not affect its stability and strength in any way.

The rod, of course, also has disadvantages. If the operation is performed poorly, caries may develop around it. And until a certain point, neither the patient nor his dentist will guess about its presence: the nerve endings are removed, and external signs hidden under restoration.

The strength of the support spoke in some situations can turn into a bad side. With a monotonous continuous load, the rod will not break, but will shift. This is fraught with breakage of the prosthesis and expansion of the hole, which, in turn, leads to severe pain and the need for emergency surgery to remove the pin along with the roots.

Sooner or later, the rod will still exude the walls of the tooth and then it will have to be completely removed and no other methods of tooth restoration will work. Will have to resort to implantation.

A minor, but still worth mentioning drawback is the price. It is, of course, lower than the installation of a crown or prosthetics with implantation. However, such a foundation in a pair hits the pocket hard, especially if several similar structures are needed at once.

What materials are the pins made of?

Conventionally, the rods are divided into two large groups: metallic and non-metallic.

metal pins- the most widespread and demanded group. Support spoke metals include titanium, stainless steel, brass, gold alloys, and palladium. The choice between metals primarily depends on the body's reaction to a particular material.

All of these metals are included in the group of non-allergic substances, however, there are people with a sharp reaction of the body to them. Intolerance to gold is the least common. This metal is closest to our body and is used if the dentist doubts whether the patient can get used to pins from other materials.

Pure gold is never used. It is too soft and will not be able to perform the basic functions of the rod. Therefore, in dentistry, either various gold alloys are used, or bases from other metals are covered with it.

Titanium is more often used for severe tooth decay. This metal is the most durable of the entire list. They serve their owners for at least 10 years. Unfortunately, they are so non-plastic that under load they can damage the socket and the tooth itself.

The remaining metals are used because of affordability, but their relatively low cost does not indicate poor quality. All of them perfectly cope with the assigned tasks.

Non-metallic pins made of fiberglass, carbon fiber and ceramics.

fiberglass structures consist of interwoven glass fibers, fixed together with a special substance. The result is a product of unprecedented lightness and strength. In addition to all this, such pins are classified as flexible or elastic. Due to the prolonged load, they can bend a little and then return to their usual shape. Externally, the rod is translucent and has a white tint. It is excellent for restoring both incisors and molars. This method has become especially popular due to the ability to make the thinnest knitting needle without loss of quality and strength.

carbon pins in recent times are used quite rarely. They are flexible but not strong enough. Along with the creation of more thoughtful solutions, carbon fiber is being forgotten more and more.

Ceramic pins belong to a number of inflexible, but they have a very low limit of elasticity. While the fiberglass will proudly support the load, the ceramic will already break. It is clear that dentists love her far from being strong. Its main advantage is its appearance. It is from this material that most are not made. removable dentures. Ceramics perfectly repeats the shade of natural hard fabric. It will not stand out from the overall picture of the restoration.

On the this moment these are all materials used for restoration with support rods. In addition to this parameter, products can be divided into types and depending on the method of attachment.

How are pins fixed?

The design is divided into active and passive pins. The classification is determined by the type of attachment.

The active pin has a system of grooves with which it is screwed into the channel. This method can be used if the root canals have not been expanded. For example, after caries treatment, it will be completely useless.

Such a spoke is very firmly held and can serve for decades, but it is not always possible to install it correctly. The dentist needs the utmost care and attention. When installing the rod, additional pressure is created on the tooth, due to which it splits in many cases even before the work is completed.

A passive pin is used to strengthen hard tissue after serious treatment, especially caries. A set of measures to get rid of this disease includes the removal of hard tissue damaged by it. As a result of this procedure, a rather impressive hole remains in the tooth, which cannot be closed with only one basis. A cementing compound is poured into this hole, and then a passive pin is inserted. After the cement has hardened, the restoration can continue. In terms of ease of installation, the passive rod is much higher than the active one, but its strength and flexibility are noticeably inferior.

Perhaps the only thing in which these designs are similar is the same number of contraindications for installation.

Contraindications for pin placement

The rod is a serious dental structure, before the installation of which a detailed survey is carried out and several analyzes are done. The main objective of this entire study is to identify whether the patient has the following contraindications:

1) Blood diseases, especially those accompanied by poor clotting. For the same reason, such an operation is contraindicated during menstruation. At this time, a woman's body produces a hormone that worsens the main blood parameters.

2) Any diseases of the nervous system.

3) Diseases of the periodontium, a complex of tissues, which include the gum, periodontium, cementum and the alveolar process itself. Problems in any of these tissues can adversely affect the entire treatment.

4) Caries. Before the operation, it must be eradicated. The development of caries around the support pin will lead to the destruction of the entire tooth. The infection can quickly penetrate into soft tissues and lead to a cyst or fistula.

5) Cyst and granulomas are no less dangerous. Moreover, it is necessary to cure the lesions of both the restored and neighboring molars and incisors.

6) Low root wall thickness. Too much big chance that such a root will not withstand the first load. The minimum wall thickness is 2 mm.

Does it hurt to put a pin?

When installing the rod, like during any other complex dental surgery, anesthesia is used. In this case, an injection is enough, and the use of anesthesia is unjustified.

Local anesthesia freezes part of the face. The patient will not feel anything at all, or will only feel what the dentist does, but not pain.

Already based on this, it can be answered that such an operation is completely painless, but this is not the only argument in favor of this answer.

Long before the installation of the rod, the pulp is removed from the root, weaving nerve endings and blood vessels. If any pain is possible during the installation, then they will be insignificant, because that part of the tooth that sends pain signals to the brain is absent.

Pin installation

The operation itself goes like this:

1) Even before it is carried out, the dentist conducts a thorough examination. If any diseases are identified that may complicate the operation or lead to complications, treatment is carried out first.

2) The dentist checks the root wall thickness and evaluates general state tooth. Based on this, recommendations are made regarding the choice of material and the type of fastening of the rod. The last word still remains with the patient.

3) Often the dentist recommends to carry out before the operation professional cleaning oral cavity. This is done in order to remove deposits on the surface of the molars and incisors, and with them, to reduce the amount of bacteria that can get into the damaged part of the tooth during the operation.

5) An injection of local anesthesia is made into the gum near the restored area. After a few minutes, the working area is checked for sensitivity. The operation can be started only if the painkiller has fully worked.

6) The root canal is cleared and, if necessary, expanded. The entire working area is completely treated with an antiseptic.

7) If a passive pin is installed, a cementing compound is poured into the channel.

8) The rod is installed in the channel. It is either twisted or gently immersed inside.

9) The walls between the base and the canal are sealed. The composition is dried under the light of a halogen lamp.

10) If the prosthesis has not yet been made, at this stage all the necessary data can be collected, for example, an impression and a sample of the color of the teeth.

11) If the prosthesis is already ready, it is fixed on temporary cement and perform a rejection test. It lasts at least a week. If everything went well, a crown or other type of prosthesis is fixed already on permanent cement.

12) A day, a week and a month after installation, a preventive examination is scheduled. The dentist will check whether the design has taken root well and whether it is comfortable for the patient. If necessary, the prosthesis will be sent for additional processing.

Rules after installation

Immediately after the operation, the patient cannot return to his usual way of life. For a few more weeks, and in some cases longer periods of time, he must observe the following rules:

2) On the first day, unfortunately, you will have to give up cleaning.

4) Teeth should not be subjected to additional stress, so no nuts or seeds.

5) Follow all doctor's orders.

6) At the appointed time, you need to come for additional examinations.

Are complications possible?

Even if all of the above rules are followed, there is a small chance of complications.

The most dangerous of them is rejection by the body. The first signs of this appear already a few days after the operation. In this case, there are no solutions to the problem, except complete removal pin and replacing it with another product, no.

Thanks to modern developments, rejection occurs in only 5-10% of cases. Much more often after surgery, periodontal disease occurs, inflammation of the ligaments between the tooth and alveolar process. The reason for this may be the mistakes of the dentist, the thermal effect on the ligament during the expansion of the channels with a drill. Without timely treatment such a disease will lead to tooth loss.

Complications can also arise through the fault of the patient himself, for example, if oral hygiene is not observed. It is forbidden to brush your teeth only on the first day, but many patients, fearing to hurt themselves, refuse hygiene until complete healing. An infection can get into the vulnerable part, where it will develop safely.

In 90% of cases, swelling and pain are observed after surgery. it common occurrence especially in the first week after installation. Recommended to do cold compress and take painkillers. If these symptoms persist even longer, you should consult a specialist.

Particular attention should be paid to body temperature. She is the first alarm bell and can tell about both rejection and the development of infection. The first day after the operation is still normal. The temperature can simply be brought down. In the future, it is worth sounding the alarm.

How much does the operation cost?

The price depends on the material and type of product. The most expensive are fiberglass. The cost of one rod starts from 1500 rubles. A metal knitting needle can be purchased for 600 rubles, but as you remember, it has a lot of flaws.

The price may vary depending on whether a standard pin was used during installation or a custom one was made. A rod made specifically for a hotel patient costs 200-300 rubles more.

dentist.tv

What is a fiberglass post?

A pin of this type has the form of a rod, which reliably strengthens the destroyed tooth and is firmly fixed in the dental canal. This method is indispensable in difficult situations.

At the moment, such products are the most popular. The price for them is quite acceptable, while they are quite elastic and are a good alternative to metal products.

Features of fiberglass pins

Safety. Such designs are better suited to the oral cavity than metal ones;
have special physical properties close to dental tissues. In their composition there are special elements that contribute to a reliable connection with them;
The risk of complications after restoration is very low. Unlike fiberglass, metal products sometimes cause tooth fractures.

Pros and cons

Advantages:

Do not cause allergic reactions;
aesthetics of the material. In color, they are very similar to tooth enamel;
It is not necessary to grind the tooth. But to remove the entire structure, if necessary, is much easier than a metal one. At the same time, tissue damage is minimal;
Less commonly, fractures and fractures occur. The load is distributed evenly.

Flaws:

Corrosive properties may be present;
Sometimes it can be difficult to remove from the canal.

Disadvantages can be avoided if the restoration of the tooth using this design is carried out by a competent specialist. At the moment, fiberglass pins are one of the neatest and most right ways dental restoration, which allows you to cope even with fairly strong destruction. Therefore, it is better to choose just such products.

In our polyclinic you will be answered all your questions on this topic and, if necessary, will hold a consultation. You just need to make an appointment, and in the near future our specialists will contact you.

consilium-dent.ru

Restoration of pulpless teeth using pin stump structures. Literature review
Ingrid Peroz, Felix Blankenstein, Klaus-Peter Lange, Michael Naumann

The prognosis of pulpless teeth depends not only on the results of endodontic treatment, but also on the type of restoration of the crown part of the tooth, which includes the decision on the need to use pin structures. To determine the fundamental principles for the restoration of pulpless teeth using pin structures, an analysis of the literature data was carried out. Pins to increase the retention of the superstructure material should be used only if there is little preservation of the hard tissues of the crown of the tooth, for example, for example, in the presence of one wall or in the complete absence of the crown of the tooth. Great importance has a rim 2 mm high, represented by healthy hard tissues, if necessary, can be used to create it surgical methods. The length of the post is limited by the need for an adequate apical seal of 4–6 mm. When short pins are used, adhesive luting is preferred. Ceramic posts are more likely to break than fiber posts, and the latter are somewhat easier to remove. The composite is a good restoration material for the superstructure. Pins must be used when using a tooth as a support for removable partial dentures. The principles presented in the article are based on the results of in vitro studies with level IIa or IIb evidence. The results of randomized clinical trials devoted to the study of the issue under discussion have not been published in the literature. It can be assumed that the volume of preserved dental hard tissues is the main factor determining the indications for the use of pin core structures, however, there are no convincing data from clinical studies and in vitro studies to support this hypothesis. Therefore, further prospective studies are needed to obtain objective information regarding this issue. clinical researches. Keywords Key words: endodontically treated teeth, core post constructions, restoration, review

If the tooth is loose, what can be strengthened

Untimely treatment, progressive diseases, injuries often lead to quite serious damage to the teeth. For the purpose of their reliable restoration in dentistry, special devices- pins. Read more about what an anchor pin is in dentistry, how it is used.

Pin - what is it?

The pin is very similar to the rod, it is fixed in the root canals of the tooth, representing a support for crowns and bridges. Installation is much cheaper than many prosthetic methods.

Pins have been used in restorative dentistry for a very long time, they are used to carry out a number of procedures:

restoration of teeth with the help of bridge structures is carried out with the help of pins in case it is not possible to fix the prosthesis on adjacent teeth,
restoration of the destroyed crown of the tooth with the help of the extension method. This method allows you to strengthen the tooth and protect it from further damage,
in order to create combined products for splinting mobile teeth,
paper rods are used for medical treatment and removal of moisture from root canals.

In some cases, the use of pins contraindicated:

serious illness circulatory system and the CNS
caries,
obstruction and tortuosity of the root canals,
cysts and granulomas
inflammatory processes of the mucosa,
thin root walls
if there is no coronal part in the frontal part of the tooth.

Types of structures

Depending on the specific case, the characteristics of the patient's body, the results of the research, the dentist selects a specific type of construction. The choice of one or another type of product depends on several factors:

the service life for which the product is supposed to be installed,
the degree of destruction of the root part relative to the gum level,
to what depth it is possible to set the rod to the maximum,
root wall thickness and the expected degree of load on the prosthetic tooth.

There are many types of pins. They differ in material, degree of strength, as well as the method of fixation. We offer you a classification of dental pins:

Construction type	Peculiarities
By material
Anchor pins in dentistry	They are made of metal alloys based on titanium, stainless steel, as well as precious metals. Sufficiently large construction. The condition for their fixation is the good condition of the root canals. They make it possible to restore fairly serious damage to the crown part of the tooth.
metal	Used to restore large areas of decayed teeth. Products are not subject to corrosion. Not rendered negative impact on the body and the state of the oral cavity.
carbon fiber	The material is very flexible, its characteristics are close to dentine. Strengthens the tooth in the root area and prevents its fracture.
fiberglass	Elastic products that do not cause allergic reactions. It's relative new material for making pins. Reduce the load on the root. In case of need for repeated treatment, they are easily removed.
Ceramic	Used to strengthen teeth after treatment. Restoring a tooth in case of serious damage to its crown part. High aesthetic qualities: ceramics are not visible through the tooth.
Parapulpal	This product is made of stainless steel coated with a polymer. Used as a support for the main prosthesis.
Stump tab	They are made on the basis of an individual cast. A crown is placed on the tab.
Gutta-percha	Factory pins in various sizes. They are fixed in the root canal using composite materials. These are short lived products.
According to the degree of elasticity
elastic	Protect the tooth from fracture in the root area.
Inelastic	Are reliable support for bridge prostheses.
According to the method of fixation
Passive	Used to strengthen the tooth after treatment. They are fixed in the root canal using composite materials.
Active	Restore almost completely destroyed teeth. Attaches by screwing into hard tissue.

How is the installation going?

Expert opinion. Dentist Gorodetsky O.Yu.: “The doctor carefully processes the root canals. Then the pin is inserted into the prepared channel so that it “cuts” into the bone tissue. The design is fixed with the help of filling materials. The next stage is the installation of a prosthesis (crown, bridge structure). If necessary, the tooth is polished.

Please note, like any other restoration method in dentistry, the installation of pins has some limitations:

An allergy to the material of the product may develop up to its complete rejection by the patient's body.
If mistakes were made during the manufacturing or installation process, the post can cause further tooth decay.
In some cases, the prosthetic element is repeatedly destroyed due to the thinning of its walls, which experience additional load under the weight of the pin.

How much does it cost to install something like this? The cost largely depends on the type of product, and starts from $ 20.

24dentist.ru

What is a dental pin

The pin is a special design, the appearance of which resembles a rod.

It is placed in the root of the tooth and provides additional support for restorative materials such as crowns and fixed bridges.

The use of pins contributes to the preservation of one's own viable tooth root, the presence of which is an indispensable condition for the procedure. In addition, the cost of installing the pin is much cheaper than the prosthetic procedure.

Video: restoration on pins

Application

Being a fairly old invention, the pins received wide application in the field of restorative dentistry. Today they are used for a variety of procedures.

These include:

prosthetics of teeth with fixed bridges. It is especially important in the absence of the possibility of fixing the prosthesis on adjacent teeth;
restoration of the destroyed crown of the tooth by its extension based on the pin. They are used to strengthen teeth and prevent the formation of fractures with the help of especially durable structures (titanium, metal, etc.);
creation of complex combined structures for splinting teeth. Helps to ensure stable fixation of mobile teeth in periodontitis;
cleaning, removal of moisture or drug treatment of dental canals, for which special paper points are used, which are characterized by sterility and a high degree of hygroscopicity.

Contraindications

Contraindications for restorative procedures using dental pins include:

diseases of the blood and nervous system;
damage or inflammatory diseases periodontal;
the presence of cysts and granulomas of the oral cavity;
caries;
curvature or obstruction of the root canals;
low indicators of the length of the roots, as well as the thickness of their walls;
absence of a tooth crown in the anterior region.

A thorough medical examination will reveal the degree of resistance of the tooth root to the planned loads, and will also allow you to measure the thickness of their walls.

Kinds

First of all, the selection of pins should be carried out by the attending physician. An experienced specialist will be able to assess the needs of the patient and choose the most suitable material for each individual case.

The selection of one or another variety is carried out based on several factors:

the degree of destruction of the tooth root relative to the gum.
the degree of the forthcoming load on the restored object and the thickness of its walls.
the maximum possible insertion depth of the pin.
service life of the installed structure.

Today there is a wide choice of dental pins, each of which has a number of specific advantages. So on what grounds can these structures be classified?

By material

Like a conventional filling, a dental pin is made from a variety of materials. All of them differ from each other in the purpose and methods of fixation, as well as indicators of strength and elasticity.

Anchor pins

They are a fairly voluminous structure made of alloys based on stainless steel, titanium or precious metals. Designed for the full restoration of extensive destruction of the dental crown, but require a good condition of the root canals.

metal

The most popular are silver metal pins. Designed to restore a large area of destruction and strengthen the crowns of the tooth.

Their advantages include resistance to corrosion, good visualization on x-rays and the absence of reactions with the human body.

carbon fiber

The advantage of carbon fiber posts is a high degree of elasticity of the material, close to that of the dentin layer. They prevent the occurrence of fractures of the teeth in the root area and significantly strengthen them.

fiberglass

As a relatively new post material, fiberglass is very popular due to its elasticity and inability to cause allergic reactions.

Fiberglass structures are easily removed if necessary. secondary treatment and significantly reduce the load on the tooth root.

Video: tooth restoration with pins

Ceramic

Designed to strengthen teeth after treatment, as well as their restoration in case of significant destruction of the crown.

The advantage of ceramics is its aesthetics, as a result of which there is no risk of its translucence through the tooth.

Also, if necessary, it can be removed without violating the integrity of the tooth.

Parapulpal

They are structures made of stainless steel alloy with a polymer coating. Unlike previous designs, parapulpal pins serve as support for the main prosthetic structure and are not installed in the tooth cavity.

Stump tabs

They are the most reliable constructions for the tooth restoration procedure. It is made according to an individual cast of the patient's damaged tooth for subsequent fixation of an artificial crown on it.

Gutta-percha

These are factory-made rods of various sizes, designed to be installed and fixed in the root canal using a composite.

Despite the affordable cost of this material, it also differs in fragility.

By elasticity

In terms of elasticity, elastic and inelastic pins are distinguished.

elastic

The main advantage of elastic pins is the protection of the restored tooth structure from near-root refraction.

Inelastic

Excellent support of the created restorative structure, including bridges.

By type of fixation

According to the type of fixation, dental pins are passive and active.

Passive

Passive pins are used to strengthen teeth after treatment. To do this, they are fixed in the cavity of the root canal with a special substance.

Active

Active pins are used to restore completely destroyed teeth.

Such a pin is the most reliable method of fastening. It is a solid rod fixed in the dentin by screwing into the bone tissue of the tooth.

Installation steps

Installation is carried out in several stages:

Thorough cleaning of the root canal.
Introduction to the open channel of the pin rod. An important condition on the this stage is to ensure optimal fixation of the rod by its entry into the bone tissue.
Construction sealing.
Dental prosthetics using a crown or artificial prosthesis.
Testing the reliability of fastening of the structure based on the sensations of the patient. If necessary, it is adjusted by grinding.

Disadvantages of the method

These include:

development of complications, as well as intensive destruction of the restored tooth. Is the result of errors made in the process of manufacturing pins;
the development of an allergic reaction up to the rejection of the pin design due to its incompatibility with the patient's body;
secondary destruction of the tooth with no possibility of its re-restoration. It is the result of thinning of the walls of the tooth, experiencing intense stress due to the pin inside;
removal of the tooth root if it is necessary to extract the pin, due to its strong fixation during installation.

Prices

Installation prices largely depend on the material from which it is made and start from 700 rubles.

Frequently asked Questions

What are the most frequently asked, and therefore topical issues potential clients?

How much does it hurt to bet?

Before installing the structure, the tooth is depulpated. And the absence of pulp eliminates the occurrence of pain.

How appropriate is the use?

The installation of these structures makes sense when the tooth crown is destroyed by 2/3 or more. In this case, a properly installed pin will contribute to the effective restoration of the destroyed part and strengthen the tooth.

Why does my tooth hurt after installation?

Despite the fact that the installation of the pin requires the removal of dental nerves, in some cases, patients experience very noticeable pain in the area of the restored tooth.

There are several reasons for the occurrence of pain.

The pain that occurs immediately after the removal of the nerve is natural, its duration can be up to several days. If the pain does not subside, an urgent consultation with a specialist is necessary.
Pain, along with a general deterioration in the patient's condition, redness in the area of the procedure, as well as the development of stomatitis, is the result of the development of an acute allergic reaction to the material used.
Unpleasant sensations may be associated with too deep entry of the pin into the canal. This defect can be detected by X-ray.

Whatever the reason, if you experience persistent pain in the area where the pin is inserted, you should consult a doctor.

Reviews

Reviews for the installation of pins are very diverse.

Wherein most of complaints related to their incorrect installation or the development of allergic reactions to the material.

zubzone.ru

Why anchor pins are needed in dentistry

If the tooth is more than 30% destroyed, it can be filled. But such a filling will not last long - exactly until the first serious test, for example, eating hard food.

Imagine that you are biting off a hard apple or cracker, and at this time you can hear your tooth crunching. Bad situation, right? To prevent this from happening, pins are used.

The rod retainer ensures an even distribution of masticatory loads on hard dental tissues. It restores the functionality of a weak, dilapidated tooth and allows you to fully eat, including roughage in the menu.

Clinical case No. 1: the tooth is destroyed by 30-50%

The best option is to build a crown with a photopolymer composite. doctor drills carious tissue, removes the pulp (dental nerve), and then cleans the canals and treats them with an antiseptic. A pin is fixed in the tooth canal, and a crown is formed around it by layer-by-layer application of the composite. Each layer is illuminated by a halogen lamp.

Clinical case No. 2: the tooth is destroyed by 50-90%

A rod with a supporting element (shoulder) for the crown is used. First, the doctor fixes the pin, and then takes impressions of the patient's teeth. Based on them, an individual crown is made in a dental laboratory. After about a week, your prosthesis will be ready, the doctor will fix it with cement-glue.

Kinds

Fasteners vary in shape:

conical;
cylindrical;
cylindrical-conical.

By installation method:

Active.

They have a thread on the surface, are installed by screwing into the dentin (bone tissue) of the root, the method is not the safest, since perforation (damage) of the walls of the tooth root may occur during the installation process.

Passive.

With a smooth surface, they are fixed only due to a layer of cement. The method is considered more gentle.

In addition, each manufacturer (Nordin, Komet, Dentsply Unimetric, etc.) produces pins in an original design and in various sizes. There are variations in length (S, M, L) and thickness (from 1 to 6 mm).

Indications and contraindications

Anchor pins are suitable for:

destruction of the crown part of the tooth by more than 30% (due to caries);
large chipped or fractured teeth;
increased abrasion enamels;
the need to strengthen a weakened tooth after pulpitis treatment.

Mandatory conditions for pin fixation

The presence of hard dental tissues above the level of the gums, at least 2-3 mm from the gingival margin.
The thickness of the wall of the tooth root is at least 2 mm (determined by x-ray).
The channel is sealed, and it is possible to unseal it by 2/3.

You will not be able to install the latch if:

Root canal obstruction.
Periodontitis and other inflammatory processes.
The presence of cysts or granulomas.

Installation procedure

Installation of a metal rod takes 30-40 minutes and includes:

Expansion of the basal mouth with a spherical pine forest.
Expansion of the root canal by 2/3 of its length - for this, manual endodontic instruments (reamer, reamer, etc.) are used.
Immersion of the pin into the canal for the entire root part.
X-ray control.
Fixation of the rod with flowable cement or composite material.

Because the nerve is removed before the post is placed, anesthesia is not required.

Main advantages:

they cannot be broken;
affordable price;
service life - about 10 years.

But many doctors believe that anchor fixators are outdated and do not meet modern requirements.

Flaws:

low bond strength;
poor aesthetics - metal pins are not suitable for the restoration of anterior teeth;
high risk of root fracture when installing a metal rod;
difficulties in removing the pin from the canal (if repeated endodontic treatment is required);
metal corrosion may occur.

As an alternative to anchor structures, elastic fiberglass pins are used, which are made from transparent glass fibers. They are considered more perfect and are shown even for the frontal teeth.

The cost of restoring a tooth on an anchor pin

titanium pin - about 500 rubles;
titanium with gilding - about 800 rubles;
tooth extension with a photopolymer - from 2,500 rubles;
metal-ceramic crown - from 10,000 rubles.

The installation of an anchor pin makes it possible to re-"blind" the destroyed tooth and preserve the remaining tissues. But which is better to choose: a cheap metal rod or a more expensive fiberglass retainer? Only your attending physician can answer this question, evaluating all the nuances of the clinical picture.

If you are looking for a dentist or a suitable clinic, then use the search engine of our website. Read also about other ways to restore teeth.

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Variety of dental pins

Consider the main types of pin structures found in therapeutic dentistry:

anchor - are three-dimensional products of a conical or cylindrical shape, which are made of stainless steel alloys, platinum, gold, titanium, palladium and others;
carbon fiber - made of a highly elastic material similar in properties to the dentin layer, this prevents tooth fracture;
fiberglass - their main advantage is the absence of allergic reactions in patients to this material. In addition, a slight impact of such a pin on the root canal allows re-treatment tooth
ceramic - used to restore the aesthetic function of the tooth with minor damage;
gutta-percha - made of a flexible material that has a low cost (this affects the durability of their use), the advantage of such pins is their dense filling of the root canal;
parapulpal - are stainless steel products with a polymer coating, such rods are used to maintain a prosthetic structure;
paper - designed for the introduction medical preparations into the root canal.

Depending on the selected material, the pin design will differ in terms of elasticity properties:

elastic - protect the restored tooth from near-root fracture;
inelastic - designed to support restorative structures such as bridges and prostheses.

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The choice of post is the responsibility of the patient. However, the task of the dentist is to provide qualified assistance to the patient in this matter, to suggest the most best option, which will be suitable in terms of quality and cost in this particular case.

Factors that influence the choice of pin:

the degree of destruction of the walls of the root;
the thickness of the walls of the restored tooth;
maximum installation depth of the pin structure;
the period for which the restoration is carried out.

The dentist has the right to refuse to carry out work on the restoration of the tooth in case of contraindications:

neurological and blood diseases;
untreated caries;
the presence of cysts and inflamed periodontal tissues in the oral cavity;
twisted or impassable root canals;
thin walls of the tooth that cannot withstand a large load and begin to collapse;
the length of the roots is less than the height of the installed crown.

Anchor pin installation

Structurally, anchor pins consist of three parts: head, shoulder and tail. According to the type of fixation, active and passive products are distinguished. The doctor evaluates the condition of the tooth that needs restoration and suggests one of the methods.

Active pin - used to restore a tooth with its complete destruction. In this case, a solid rod is screwed into the bone part, followed by mandatory cementation.

Passive pin - has no thread and is used to strengthen the tooth after its restoration. At the same time, a rod is inserted into the sealed channel and fixed with a special solution.

The restoration process using an anchor pin structure consists of the following important steps:

thorough cleaning of the root canals with the removal of gutta-percha substance;
a rod is inserted into the root canal: at this stage, a prerequisite is the implementation x-ray, in order to make sure that the anchor pin is installed correctly;
fixing the structure with special cement material;
sharpening the tooth and preparing it for prosthetics;
recovery anatomically shaped tooth with a crown or prosthesis;
checking the strength of the fastening of the structure and, if necessary, its adjustment by grinding.

Advantages and disadvantages of pin design

The main advantage of a tooth that has been restored with a pin design is the strong and secure attachment of the restored part. This makes it possible to install prostheses in the future.

However, this method also has significant disadvantages:

metal products are subject to corrosion;
on the alloy of metals from which the pins are made, the patient may experience an allergic reaction, which will subsequently lead to rejection of the entire structure;
under the intense influence of the rod, the walls of the roots and the walls of the tooth itself can be destroyed, while its re-restoration is not possible;
when the pin is removed, the root is also removed;
installation of pin structures requires high professionalism of a dentist, as a result of errors that can be made in the manufacture and installation of products, complications develop and the tooth is destroyed.

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Installation cost

The price of anchor pins in dentistry depends on the material of construction and whether a standard pin is selected or it is made to order. Anchor pins are much cheaper modern analogues, around 600 rubles. But, despite the presence of many disadvantages, such pins have many advantages, which put them in first place for many patients.

Given the above, it can be said with confidence that the method of installing anchor pins to restore decayed teeth can help hundreds of thousands of patients. It improves their quality of life. After treatment, the patient can fully eat, without denying himself solid food, vegetables and fruits.

stopparodontoz.ru

Varieties

Pins for teeth are presented in a wide variety. All products differ in strength, fastening methods, elasticity. Only the right option can be selected experienced doctor, who has due experience with the presented designs.

Anchor

For the manufacture of anchor pins, titanium, palladium, brass, stainless steel, and precious metals are used. Today, this design option is considered the best. They can be used to correct the most difficult cases. The anchor pin has become widespread in statistic practice for the reason that with its help it is possible to restore the tooth, provided that the crown is completely destroyed. At the same time, it is necessary that the root of the unit of the dentition be completely intact. Otherwise, there will simply be nowhere to install the pin.

The advantages of the considered design include the reliability of fixation, as well as the possibility of subsequent installation of the prosthesis. The disadvantages of the anchor pin include low elasticity, susceptibility to corrosion, and difficulties may arise when removing the product.

It is not long to fix the structure, but a similar operation is performed in any dental clinic. The cost of installing an anchor pin is determined taking into account the region. On average, it is 90 rubles.

fiberglass

For the manufacture of the structure, a new one is used in dental practice material is fiberglass. Today it is in great demand among dentists, as it has high elasticity and is hypoallergenic. When installing the structure, it does not react with saliva, dentures, and metal is not noticeable. Fiberglass pins have become an excellent alternative to metal structures.

Their advantages include:

the possibility of restoring the cult at a time;
fiberglass pins do not lose their appearance over time;
not susceptible to corrosion;
easily removed if necessary;
reduce the stress on the tooth.

The only downside to fiberglass posts is high price. It is 170 rubles per unit.

carbon fiber

This design option is obtained from a modern and elastic material. Carbon fiber pins can be classified as non-metallic products. Due to this design, it is possible to evenly distribute the load, preventing channel fracture.

The material has properties close to the dentin layer. Thus, it has high strength and long service life. When installing such products, the patient can safely use solid food. The cost makes 200 rubles for 1 unit.

Stump

These designs represent a kind of micro-prosthesis. For its manufacture, chromium, gold, cobalt are used. The product is used in case of impossibility to install a crown, as well as in case of serious deformations of the tooth.

Post-stumps are in high demand due to the careful formation of the canal. When they are installed, the chewing load is distributed equally, which prevents the root from breaking. The disadvantage of the design is the lengthy manufacturing process.

Parapulpal

These devices are classified as non-metallic. For their manufacture, materials such as gold, stainless steel are used. The selected material is coated with a special polymer. Serve for retention, reinforcement of filling materials. The installation of the product is carried out in solid tissues, while the pulma is not affected. Since the pin does not penetrate deep into the tooth, the possibility of infection and development is excluded. inflammatory process.

The disadvantages of the design include the limited use, since the pin is close to the working surface. Most often, the product is used to give the seal high strength qualities.

Still pins can be divided into two large groups:

Standard. They are used to eliminate small defects in the teeth. Their shape can be conical or cylindrical. The fitting of the rod for each patient is carried out using special tools.
Individual. In their manufacture, the relief of the root is taken into account. Such a process takes a long time. At the same time, the cost of products is more expensive than the previous ones. The pin is highly reliable, and is also firmly fixed in damaged root canals.

The shape of the pins are divided into the following types:

screw;
conical;
cylindrical;
cylindric.

Taking into account the method of fixation, the following types of devices are distinguished:

Active pin. The design is installed in the dentin. This method is the most reliable. Due to the existing thread, the product is easily screwed into the bone tissue, allowing you to restore an almost completely destroyed tooth. The disadvantages of the design include the fact that due to high voltage, a split of a unit of the dentition may occur.
Passive pin. Its fixation is carried out with the help of a special fixing substance in the cavity of the root canal. Apply immediately after treatment. But the reliability of the passive product is not so high.

Before installing the pin, it is necessary to exclude the possibility of developing an allergy. Extremely rarely there is individual intolerance, in which the design does not take root. Then the tooth must be removed. Implantation is not painful and does not require much time. When installing a titanium or fiberglass pin, the patient does not feel any discomfort.

Indications

The installation of pins can only be carried out if the following indications take place:

regeneration of teeth in which the crown part is destroyed by more than half;
creation of support when installing fixed and removable dentures.

Contraindications

It is not always possible to install pins, especially if there are the following contraindications:

complete absence of a tooth crown;
blood disease;
diseases of the nervous system;
periodontal damage;
periodontal inflammation;
caries;
cyst;
the length of the root is less than the planned height of the crown of the tooth;
root wall thickness less than 2 m.

How to install a pin

The tooth on the pin does not lead to the development of painful sensations. But it depends on how the procedure is performed and whether the nerve was previously removed. In addition to the absence of unpleasant symptoms, the installation process takes a lot of time.

It is possible to carry out the installation of the pin if the nerve has been removed and at least one wall has been preserved. This process takes place following the following steps:

The doctor performs the removal of the pulp and carefully seals the root canal of the tooth. To check the work performed, it is necessary to send the patient for an x-ray.
Preparation of dental tissue. At this stage, the doctor removes all dead cells and prepares the site for the installation of the structure.
Using special nozzles, the doctor prepares the channels for installation. To do this, small holes are made in the fabric.
The inner part of the product is installed in the holes made. The outer part will act as a support for the seal. It rests on the pin and the walls of the tooth. It is necessary to apply the seal in layers, and then the structure takes the form of a tooth.
After installing the pin, the doctor should check the convenience of the design. If the patient feels discomfort, then the restored tooth is polished.

The whole manipulation does not last long. In this case, no pain occurs if the nerve has previously been removed. A correctly installed pin will give the necessary rigidity to the seal, as a result of which it will last up to 10 years.

If a nerve is needed, the doctor should give the patient an injection of anesthesia. If a metal pin is being installed, then pain is not felt.

Rehabilitation

When the pin placement procedure has been performed, the doctor will prescribe certain medications for the patient. In this case, you must follow a diet. The patient should use simple writing, which is easily chewed.

After installing the product, it is necessary to prevent the development of the inflammatory process. So it is worth taking care of thorough oral hygiene. For these purposes, it is necessary to carry out regular cleaning mouth and use rinses, dental floss. With poor oral hygiene, inflammation of the gums near the restored tooth may develop.

Often, patients experience pain in the area of the installed pin. The reason lies in the fact that the tissue around the screw is injured during its installation. More pain occurs with a fairly deep introduction of the product into the canal of the tooth. When the manipulation was accompanied by the removal of the nerve, the pain syndrome may persist for several days. If after a few days from the moment the pin was installed, the pain did not disappear, then this indicates an allergy to the material from which the pin was obtained.

If painful sensations arise due to the fact that the body rejects a foreign body, then the only right decision it remains to remove the device from the oral cavity. Thanks to the application innovative technologies rejection occurs only in 10% of cases. As a rule, periodontal disease may occur after the procedure. The reason for its occurrence lies in the banal error of the doctor, the thermal effect on the ligament during the expansion of the channels. Without adequate therapy, you can completely lose a tooth.

Often the described problems arise due to the fault of the patient himself. For example, when a person does not adhere to simple rules of personal hygiene. Teeth cleaning should not take place only on the first day after the manipulation. An infection can penetrate into the affected area and actively develop there.

After the intervention, the patient has swelling and soreness. This phenomenon is quite normal. To stop unpleasant symptoms, it is necessary to apply a cold compress or drink an anesthetic. If such phenomena will bother you for a long time, then you need to urgently visit a dentist.

Be very careful about body temperature. Its rise may cause the development infectious process or rejection. In the first few days after the manipulation, this phenomenon is considered normal.

Advantages and disadvantages of pins

The main advantage of the described technology is that regeneration can occur even if the tooth is badly damaged. The base of the tooth will not be affected. It does not need to be replaced with an implant. As a rule, a dental pin is a design with which it is possible to prevent the removal of a decayed tooth.

When using pins, the root system of the front teeth is not disturbed. Doctors guarantee that foreign products will not irritate the mucous membrane, as happens when using removable dentures. This is extremely important for people who are hypersensitive and allergic to certain dental materials.

Another advantage of using dental pins is their long service life. Most designs are designed for 10 years of operation. Although in practice there were cases when the service life reached 20 years. But such a result is achieved under the condition that no excess load was applied to the spoke.

Since a dental post can be made from various materials, it is possible to choose the ideal product for a particular case. For example, if it is necessary to install a ceramic prosthesis, then there is no need to use a metal prosthesis in this case, because it will be visible through the crown material. You can solve the problem with the help of a dental pin obtained from fiberglass. This material is light and does not affect the appearance of the prosthesis.

As for the cons, dental pins have them too. This should include:

There is a risk of developing caries around the installed structure. It is possible to detect the disease only at a late stage.
Excessive strength of the pin leads to its displacement during operation. This leads to damage to the prosthesis and the roots of the tooth. The only way to solve the problem is to remove the pin along with the tooth.
At the end of the service life, the spoke will cut through the walls of the prosthesis. This will cause the complete removal of the tooth, since there are no other ways to fix the problem.

Dental pins are in great demand today in the restoration of a damaged tooth. They exist in a wide range. each of the available products differs in material, strength and installation method. The choice of the necessary pin is carried out by the doctor, taking into account the problem and wishes of the patient.

An anchor pin (from German anker - anchor) is a metal rod that is used in dentistry to strengthen and restore severely damaged teeth. It serves as an additional support for a filling or a microprosthesis. It is fixed in the root canal of the tooth.

The intracanal pin is a ready-made factory design, it is inexpensive and allows you to quickly (in just 1 session) restore the tooth and return it to its original appearance.

Why anchor pins are needed in dentistry

If the tooth is more than 30% destroyed, it can be filled. But such a filling will not last long - exactly until the first serious test, for example, eating hard food.

Imagine that you are biting off a hard apple or cracker, and at this time you can hear your tooth crunching. Bad situation, right? To prevent this from happening, pins are used.

Clinical case No. 1: the tooth is destroyed by 30-50%

The best option is to build a crown with a photopolymer composite. The doctor drills out carious tissues, removes the pulp (dental nerve), and then cleans the canals and treats them with an antiseptic. A pin is fixed in the tooth canal, and a crown is formed around it by layer-by-layer application of the composite. Each layer is illuminated by a halogen lamp.

Clinical case No. 2: the tooth is destroyed by 50-90%

Kinds

Anchor pins are made from platinum, palladium alloys, titanium or stainless steel. They also come in brass and gold plated.

Fasteners vary in shape:

conical;
cylindrical;
cylindrical-conical.

By installation method:

Active.

Passive.

With a smooth surface, they are fixed only due to a layer of cement. The method is considered more gentle.

Indications and contraindications

Anchor pins are suitable for:

destruction of the crown part of the tooth by more than 30% (due to caries);
large chipped or fractured teeth;
increased abrasion of enamel;
the need to strengthen a weakened tooth after pulpitis treatment.

Mandatory conditions for pin fixation

The presence of hard dental tissues above the level of the gums, at least 2-3 mm from the gingival margin.
The thickness of the wall of the tooth root is at least 2 mm (determined by x-ray).
The channel is sealed, and it is possible to unseal it by 2/3.

You will not be able to install the latch if:

Root canal obstruction.
Periodontitis and other inflammatory processes.
The presence of cysts or granulomas.

Installation procedure

Installation of a metal rod takes 30-40 minutes and includes:

Expansion of the basal mouth with a spherical pine forest.
Expansion of the root canal by 2/3 of its length - for this, manual endodontic instruments (reamer, reamer, etc.) are used.
Immersion of the pin into the canal for the entire root part.
X-ray control.
Fixation of the rod with flowable cement or composite material.

Because the nerve is removed before the post is placed, anesthesia is not required.

Main advantages:

they cannot be broken;
affordable price;
service life - about 10 years.

But many doctors believe that anchor fixators are outdated and do not meet modern requirements.

Flaws:

low bond strength;
poor aesthetics - metal pins are not suitable for the restoration of front teeth;
high risk of root fracture when installing a metal rod;
difficulties in removing the pin from the canal (if repeated endodontic treatment is required);
metal corrosion may occur.

As an alternative to anchor structures, elastic fiberglass pins are used, which are made from transparent glass fibers. They are considered more perfect and are shown even for the frontal teeth.

The cost of restoring a tooth on an anchor pin

titanium pin - about 500 rubles;
titanium with gilding - about 800 rubles;
tooth extension with a photopolymer - from 2,500 rubles;
metal-ceramic crown - from 10,000 rubles.

There are more than ten ways to restore teeth. So, if carious destruction is recorded, then microprostheses (tabs) are used, and veneers are used for chips. However, these techniques will not work if the tooth has no roots or they are too weak. In such a situation, teeth are built up on a pin.

Outwardly, pins for teeth resemble a rod, which is fixed in the root canals, after which the teeth are built up. A pin is placed in the tooth if its outer part is preserved by at least 20%. According to the material of manufacture, the following are distinguished types of structures:

Another classification is based on way, which fixes the pin in the root of the tooth:

Finally, designs differ in channel shape:

Screw.
Cylindrical.
Conical.
Cylindroconical.

Choosing the most suitable design for a particular patient, the doctor focuses on the following options:

how badly the tooth is damaged;
how much the root is destroyed, how deep the pin can be installed;
what will be the load on the root, whether the tooth will be a support for the prosthesis;
the patient's health condition.

Expert opinion. Dentist Ovdienko O.Yu.: "Preference in last years are given to non-metallic structures, because, firstly, they benefit from an aesthetic point of view, and secondly, they are able to fill the entire channel. At the same time, they are in no way inferior to metal ones in terms of strength. In addition, non-metallic pins have flexibility, which is very important for the functionality and durability of the design: if a pin is installed that cannot bend, the main pressure is on the channel wall, which can crack.”

Indications and contraindications

The destruction of the coronal part by more than half is an indication for the installation of pins.

Why are pins needed? Testimony for their use are:

more than half of the tooth decay;
absence of a crown;
the need to create a support for installation.

There is also a list contraindications:

the absence of a crown of a tooth related to the frontal section;
blood diseases that are accompanied by clotting disorders;
damage and inflammation of the periodontium;
caries, which must be eliminated before the pin is installed;
the presence of granulomas and cysts in the oral cavity;
a short root, as well as thin root walls (the minimum figure is 2 mm).

How is a pin placed in a tooth?

Installation takes place according to the following algorithm:

the so-called expansion. To build up a tooth, composite materials are used, from which an extended tooth is formed around the pin, after which, if necessary, it is filed, ground and polished;
installation on a tooth on a pin. The crown is made on the basis of x-ray data, after which it is fixed with special materials.

This is a description of the general technology and sequence of actions, however, in each specific case, it may vary slightly, since teeth on pins made of different materials are made using different techniques.

Approximate prices

How much does it cost to install a tooth on a pin? The answer to this question depends, first of all, on the type of construction, on the material used, on the degree of preservation of the tooth and on the amount of work required for its restoration. average cost teeth on pins in Moscow clinics is as follows:

anchor (usually titanium) pin in the tooth - from 500 rubles. ($7.5);
fiberglass - from 2000 rubles. ($31);
stump tab - from 10 thousand ($ 153) (cobalt-chromium alloy) to 27,000 ($ 415) (ceramics).

The price is indicated exclusively for the pin; the cost of tooth restoration performed with its use will be different: on average, from 3,000 ($ 46) to 15,000 rubles ($ 230). In addition, the cost of making a crown or building up teeth with composites must be added to this amount - from 3 to 20 thousand rubles ($ 46-307).

Rehabilitation

Despite the fact that the operation to restore the tooth with a pin is considered to be modern dentistry private, she has postoperative period, during which it is necessary to observe regulations:

take medicines prescribed by your doctor (for example, antibiotics);
do not injure the mucous membrane with food, use it in a wiped state;
brush your teeth at least twice a day, but very gently, soft brush, to avoid injury;
do not use toothpicks, especially in the area where the restoration was carried out.

FAQ

Restoration of teeth using pin structures is a very common procedure. However, for those who encounter it for the first time, it raises many questions. We will give answers to the most frequent among them.

— Does it hurt to install a pin in a tooth?

The installation procedure itself is carried out under local anesthesia so it is completely painless. Unpleasant sensations and pain may appear after the anesthesia wears off, but they should not be prolonged.

— What to do if a tooth with a pin hurts after it is installed?

During the installation of the pin, the doctor touches the soft tissues, so pain after the end of anesthesia is a normal phenomenon. Painful sensations are also natural if the nerve has been removed. But sometimes the pain comes from medical error- for example, if the rod went too deep and rested against the bone, if the root canals were not completely sealed, if their walls were damaged, and for other reasons. In addition, due to poor-quality processing, inflammation may develop, and sometimes a fistula is formed. If the pain does not go away within a few days or gets worse, you should consult a doctor.

— Can an allergy to a pin design occur?

Most often, an allergic reaction can occur if a metal rod is installed. It is accompanied by swelling, redness, itching, pain, development of stomatitis. These symptoms may appear immediately after surgery or after some time; in any case, they require a visit to a doctor and, if an allergy is confirmed, a replacement of the structure.

— Is it possible to do an MRI if there are pins in the teeth?

The metal can indeed affect the course of the MRI procedure and its results. First, under the influence magnetic field they get hot and can move. Secondly, the metal distorts the magnetic field of the device, so the image may turn out to be fuzzy. It's about far from all designs; in addition, many clinics install modern equipment that does not affect ferromagnetic alloys in any way. In any case, before the procedure, you need to inform the doctor about the presence of metal pins.

— What to do if the tooth is loose on the pin?

First of all, it is necessary to find out the cause by taking an x-ray. Tooth mobility may be due, for example, to the fact that the post or crown has been de-cemented. It occurs both with a root crack and with periodontal changes in the area of the restored tooth. Only a doctor can plan treatment after examination.

—What to do if a tooth with a pin falls out?

A crown mounted on a rod can fly off for two reasons: if the remaining walls of the tooth rot and if the fixation was not performed well enough. It is necessary to contact the dentist as soon as possible: it is possible that it will be possible to restore the crown without re-treatment of the tooth. Another reason for the loss of the crown is a significant destruction of hard tissues. In this case, it is better to abandon the re-installation of the pin and give preference to implantation.

— Why appeared bad smell from under the crown?

If an unpleasant smell appears from under the crown, the tooth may have begun to rot.

The smell appears if the remaining tooth begins to rot. Other manifestations of decay - food gets stuck under the crown, and the tooth turns black. The only way to deal with this is to see a doctor who will heal the tooth and install a new design.

—How can a pin be removed from a tooth?

Pin removal may be required in the following cases:

re-treatment is necessary (for example, with the development pathological process near the top of the tooth root);
poor quality installation, the rod is set too deep;
the material from which the structure is made causes allergies;
before implantation.

The removal procedure is usually painless. The doctor removes crowns, destroys fillings, takes out artificial structures and with the help of ultrasound destroys the cement. After checking the patency of the root canals, the dentist, if necessary, installs a new design according to the standard algorithm.

Under the influence of time and in the absence of proper care, teeth begin to deteriorate. Previously, with severe destruction, the dentist recommended removing the problem unit.

The use of an anchor is the best alternative to extraction. This modern method allows you to restore and preserve the body, even with significant damage.

General view

The elements of the dentition are solid in size and can withstand high loads, so they must be stable, otherwise they are subject to serious damage. When restoring severely damaged teeth, a filling or crown simply will not hold.

The retainer is a special structure that acts as a support for the installation of a crown or filling. His active use in dentistry due to the possibility of obtaining a good result at a low cost.

There are several types of retainers in dentistry. The anchor type is used for the complete restoration of the unit in case of severe destruction.

The only disadvantage of this method of restoration is that for a quality installation, the roots must be in good condition.

The principle of restoration is that the rod is installed in the root, then covered with a crown or photopolymer materials.

This method allows you to restore not only the appearance of the organ, but also ensure its full functions. Externally, the restored element is no different from the anatomical organ.

Product types

Standard anchor products are metal. For their manufacture, gold, brass, titanium, stainless steel and other alloys are used. The durability of the restoration will depend on the quality of the material from which it was made.

Retainer shapes

The shape of the anchor pin is selected individually depending on clinical case. The dentist is based on the number of roots, the nature of the canal, the depth to which the retainer should be immersed.

Products are produced:

Conical. The base of the latch has a larger diameter and sharpens towards the end.
Cylindrical. They have the same diameter along the entire length. Suitable for wide channels.
Cylindrical-conical. Have more wide base, then narrow, but do not sharpen at the end.

Features depending on installation

Dentists use two types of installation:

Active. May be of any shape. Its feature is the presence of a thread. Fixation in the hard tissue of the root occurs by screwing into the prepared cavity.
This method is dangerous because under pressure, the root wall can burst. This will result in the need for a complete removal.
Passive. Fixation is carried out through the use of cement, with which the product is fixed in the channel of the problematic organ. It is possible for the structure to fall out due to the weakening of the action of cement.

The danger of root destruction is the main reason for the frequent use of the passive installation method. Modern materials allow for for a long time fix the rod at the root.

Indications and contraindications

The dentist installs an anchor fixator for such indications:

Partial destruction of the crown. Suitable if no more than 30-50% of the crown part is damaged by caries.
Chips and fractures, as a result of which part of the crown was damaged and needs to be restored.
erasing, when most of the superficial hard tissue is missing.
Strengthening the crown. If the tooth is weakened after the treatment.

Prerequisites for installation

The anchor may only be placed if the patient has:

hard tissues are preserved at a height of 2-3 mm from the gum line;
an x-ray confirms that the root walls are preserved, the thickness should be at least 2 mm;
a filling was placed in the canal, which can be partially unsealed. For installation, you will need to drill out about 2/3 of the seal.

The dentist will not be able to install the retainer in such cases:

chronic inflammatory gum disease;
obstruction of the dental canal;
any neoplasms in the area of the root of the tooth and gums.

Installation steps

Installation can only be done by a professional dentist. The procedure is carried out in several stages.

The complexity and duration depends on the degree of tooth destruction, the condition of the channels and the physiological characteristics of the patient.

Preparatory stage

The procedure is not directly related to the installation, but is the most important step. The service life of the restored tooth depends on the quality of the procedure:

Isolate adjacent units. Allows you to create a field for work and prevents damage to healthy organs.
Removal of hard tissues affected by caries. To avoid its spread after the procedure.
Disinfection of the operating field. The procedure is necessary to avoid the development of an inflammatory or infectious process after manipulation.
Preparation of the dental canal. Expand if necessary. Next, they are treated with antiseptic agents.

Fixation

At this stage, the dentist fixes the rod in the canal. Before installing the main element, it is recommended to use a temporary one.

After installation, the patient is x-rayed in order to make sure that the element has the correct direction and is immersed to the desired depth. Next, the temporary product is removed and the permanent one is installed.

The active pin is screwed gently along the root canal. The dentist must feel the process, otherwise it may damage the root walls.
Passive products are less demanding on the accuracy of insertion, but you should pay attention to high-quality fastening.

For fixing, special cement mortars are used. Part of the rod should rise above the gum line, the crown will be fixed on it.
Crown installation. At this stage, the dentist prepares the tooth for a crown. It is ground, after which a crown is put on.

During the procedure, the patient may feel pain, so all manipulations are performed under local anesthesia. Despite this, the patient may feel discomfort during the procedure.

In the video, see the principle of installing the stump structure.

Advantages and disadvantages

Before deciding to use the anchor post method of tooth restoration, you should familiarize yourself with its main advantages and disadvantages.

Advantages

High strength. Metal retainers securely hold the restored part of the tooth, withstand high chewing loads.
Low cost. A stainless steel product costs about 90 rubles.
High recovery rate. The entire recovery procedure lasts no more than an hour in difficult cases.
The possibility of installing a prosthesis. Anchor fixator is suitable for use as a basis for installing micro-prostheses.

Flaws

Possibility of root damage during installation. As a result, the tooth will have to be removed.
Corrosion. Since anchors are made from metal alloys, they can deteriorate over time.
Aesthetics. The retainer differs in color from tooth enamel and can be translucent.
Difficult to remove. Since the element is rigidly fixed in the dental canal, attempts to remove it can lead to perforation of the dental roots.

Alternative

The main competitor of the anchor is the fiberglass rod.

A fiberglass post has a similar function - strengthening the dental crown. But unlike the anchor element, it is made of soft material. As the basis of such a product, fiberglass is used, which is filled with plastic at the factory.

Fiberglass retainer is called "wedging". This name is due to the fact that the pin allows you to evenly distribute the load throughout the tooth, which ensures a longer service life.

Another advantage of the fiberglass retainer is that it matches the color of the tooth, so it is not visible in the oral cavity.

The analog completely recreates the structure of the restored tooth and is easily removed if necessary.

In general, both competitors give good result recovery.

Price

The cost of restoring a tooth with an anchor pin largely depends on the material from which the retainer is made.

The average cost of a stainless steel product is 400 rubles. Similar models made of gold-plated titanium will cost about 600-1000 rubles.

The cost of the installation includes the work of a specialist and anesthesia. In case of root canal problems, the cost may increase. The price is also affected by the number of products needed to fix the tooth.

For large damage, the dentist can use 2- 3 elements. In this case, the pins are screwed into each dental canal.