Method prosthetic splint the tooth with an artificial stump of metal

 

(57) Abstract:

The invention relates to medicine, namely to the dentist, and may be applicable to prosthetic splint the tooth with an artificial stump of metal. Expand the root canal under the standard pin. Insert into advanced root canal of the tooth pin (burned-out). Choose the length of the pin such that the pin towered over the stump of the natural tooth at the height of the crown. Model tassel pin, to which a brush is dipped into the monomer, and then in the powder ash-free sculpturing plastic, formed on the brush, liquid weight gradually fill the cavity around the post. Model also tassel artificial stump, at the same time giving it the shape of the stump of the tooth, prepared under an artificial crown. Finalize finally the tooth stump for future coating structure after solidification of the plastic. The method improves the accuracy of the simulation, to increase the strength of the structure, to simplify the implementation of the method.

The invention relates to medicine, namely to prosthetic dentistry and can be used to restore the crown of the tooth.

Known ways is for drinking, preparing artificial stump of the tooth. In the method dissect the remaining part of the tooth crown, then open the root canal and extend it. After this, remove the preliminary (tentative) the seal of the root canal. Then use the syringe to fill the root canal correcting weight and take final double impression. And before removing the double seal in the root canal additionally insert the plastic pin for secure retention of impression material when it is removed from the dentition, during casting the plaster model and removing a seal (E. N. Zhulev. "Fixed prostheses" Theory, clinic and laboratory equipment / Nizhny Novgorod: C, 1955, S. 295).

The disadvantage of this method is that it requires accurate impression of the root canal, which leads to the complexity of its implementation.

Closest to the present invention is a method prosthetic splint the tooth with an artificial stump of metal, according to which dissect the remaining part of the tooth crown, then open the root canal and expand it, simulate artificial tooth stump with a pin, on the model of the cast artificial tooth stump with a pin, and strengthen their teeth are made covering the design and the criminal code is as natural and stump of the tooth and the artificial stump of the tooth. To perform the first stage of modeling is heated to plastic state a stick of wax pressed against the stump of the tooth root and get the printout, showing the root and stump of his mouth. This modelling wax covers only the cervical part of the tooth. Then take a prepared piece steel orthodontic wire or Klammer diameter 1-1 .5 mm with oval tip and notches across the surface for secure retention of the wax. The workpiece is slightly heated and injected through a wax imprint into the root canal so that the portion of the pin is performed on the root at about the level of the crown. After the solidification of the wax, the pin is removed and inspected. Then, to obtain the thumbprint of all the prepared channel for free from wax of the pin facing the tip of the tooth root, put the melted wax and plastic condition wax pin re-injected into the root canal. After cooling the wax pin is removed and again inspected. If the result is positive pin with wax establish into place in the extended tooth canal and proceed to the second stage: modeling artificial stump. To do this on the root of creating a supply of wax. Then the excess wax is removed, while p is produkciu carefully removed from the root and make a metal casting. Metal stump strengthen the tooth on the cement. Then make an artificial crown and cover the tooth stump (E. N. Zhulev. "Fixed prostheses" Theory, clinic and laboratory equipment / Nizhny Novgorod: C, 1955, S. 292-294).

The disadvantage of this method lies primarily in the fact that as the modeling material using wax, which requires careful handling in the manufacturing process models, and with the finished model, which determines the complexity of the method. The need for separate operation simulation of the root canal complicates the process and reduces the accuracy of the simulation, as in itself an operation simulation of the pin is complex, because it involves a pin coated with a wax repeatedly remove, inspect, add wax and injected into the canal of the tooth. This also reduces the efficiency of the method that is important as modeling the stump of the tooth is performed directly in the oral cavity of the patient who is experiencing discomfort, and time to perform all of the operations of the method is limited. Besides, after casting the pin remains in the metal core, which reduces the strength of the structure. This is due to the fact that in the known method is used as reinforcement for fixing wax, and given the fact that the metal pin and casting inhomogeneous, because the pin is made of steel orthopedic wire, the surface of the pin does not have a strong coupling with metal casting and does not represent a single whole, which weakens the structure.

Thus, identified in the patent search is closest to the proposed method prosthetic splint the tooth with an artificial stump of metal when the implementation does not ensure the achievement of the technical result consists in the simplification of the method, increasing the strength design method, the more accurate modeling, and improving efficiency.

The present invention solves the problem of creating a method prosthetic splint the tooth with an artificial stump of metal, which allows to achieve the technical result consists in the simplification of the method, increasing the strength design method, improving the accuracy of modeling, and improving efficiency.

The invention consists in that in the method of prosthetic splint the tooth with an artificial stump of metal, according to which dissect the remaining part of the tooth crown, skriva the military stump of the tooth, simulate artificial tooth stump direct way, make a metal casting artificial stump of the tooth with the pin, strengthen it on the prepared tooth, make an artificial crown of the tooth and cover it on the tooth stump, root canal extends under standard pin, and the pin and the artificial tooth stump model of ash-free sculpturing plastics, advanced root canal of the tooth insert pin (burned-out), the length of which is chosen such that he towered over the stump of the natural tooth is approximately the height of the crown, then brush simulate the pin, to which a brush is dipped into the monomer, and then in the powder ash-free sculpturing plastic, formed on the brush liquid mass, gradually fill the cavity around the post, and then just brush simulate artificial stump, at the same time giving it the shape of the stump of the tooth, prepared under an artificial crown, after hardening of the plastic tooth stump modify permanently for future top design.

The technical result is achieved in the following way. Dissection of the remaining part of the tooth crown ensures that in future the stump of the tooth is the presence that is the fact that reveal the root canal and expand it, and then in the upper part of the tooth perform cavity under the tabbed part of the artificial stump of the tooth, there is the possibility of modeling the cast part of the prosthesis.

Modeling artificial stump of the tooth direct method provides more accurate model of the stump, as its formation is made directly in the cavity of the tooth and not on the model, the manufacture of which can be made not visible to the eye deviation.

Due to the fact that in advanced root canal of the tooth insert the pin, which is then repeated in the casting, strengthen the root of the tooth, increasing its mechanical strength, which increases the strength design method. Since the channel in the root of the tooth extends under standard pin, it is possible to use in the simulation of the pin, the maximum of the shape of the cavity prepared in the root canal. It provides for modeling the density of the contact pin to the walls of the prepared tooth root, which, in turn, makes subsequent monolithic connection of the metal stump of the tooth root with the walls of the root of the tooth and provides structural strength along the way. Due to the fact that the length of the pin is chosen such, calzoleria the protruding part of the pin as armature when modeling the coronal part of the artificial stump of the tooth, this improves the accuracy of the simulation and hence the accuracy of the casting.

Due to the fact that the pin and the artificial tooth stump model of ash-free sculpturing plastic, this simplifies the process of extraction of a model from the cavity of the tooth, and therefore simplifies the way, since modelling the plastic hardening forms a solid design in contrast to the wax model. Education robust design in modeling the stump of the tooth eliminates damage model when removed from the cavity of the tooth and does not require immediate termination model on casters a lot, as it allows you to save a achieved before casting the accuracy of the model stump of the tooth almost unlimited time. This increases the accuracy of simulation and easier way in comparison with the prototype.

Using the proposed method for the manufacture of artificial stump of the tooth ash-free sculpturing plastic and pin (burned-out) also provides increased structural strength along the way. This is because the ash-free sculpturing plastic and the pin (burned-out) consist of the same material, which, when casting fade without ancovas part of the tooth, represents a single monolithic structure, which increases the strength design method.

Use for simulation of ash-free sculpturing plastic and brushes to dissolve the plastic in the monomer and application of plastics provide a simplified method and increase its efficiency, simplifying the modeling process, which, in turn, improves the accuracy of the simulation. The efficiency of the method increases with the ability to use standard pin (burned-out), which eliminates the need for constant control simulation tooth canal. Due to the fact that the brush each time, first dipped in the monomer, and then in the powder ash-free sculpturing plastic, plastic becomes liquid and the yield in the simulation penetrates into hard to reach areas, which improves the accuracy of the simulation increases the strength of future construction on the way, while simplifying the method and increasing its efficiency. Modeling of the pin and artificial stump of the tooth by brush, owing to the elasticity of the brush and fluidity of the plastic to cause the liquid plastic for hard to reach areas of the pin, mcnasty to simulate artificial stump of the tooth, at the same time giving it the shape of the stump of the tooth, prepared under an artificial crown. Due to the fact that after hardening of the plastic tooth stump finally finalize for the future covering design, increases the accuracy of simulation, and therefore, precision casting and durability of construction on the way. Due to the fact that the metal casting artificial stump of the tooth with the pin strengthen on the prepared tooth, it is possible impression for manufacturing an artificial tooth crown. The manufacture of artificial tooth crown and floor it the stump of the tooth will precaut design method, as well as ensure the prosthesis aesthetic appearance.

Thus, the present invention is a method of prosthetic splint the tooth with an artificial stump of metal in the implementation ensures the achievement of the technical result consists in the simplification of the method, increasing the strength design method, improving the accuracy of modeling, and improving efficiency.

Method prosthetic splint the tooth with an artificial stump of metal is as follows. Dissect the remaining part of the tooth crown. Open to the second part of the artificial stump of the tooth. The pin and the artificial tooth stump model of ash-free sculpturing plastic. Modeling perform direct way. For this, advanced root canal of the tooth insert pin (burned-out), the length of which is chosen such that he towered over the stump of the natural tooth is approximately the height of the crown. Then brush simulate the pin. To do this, the brush is dipped into the monomer, and then in the powder ash-free sculpturing plastic. Formed on the brush liquid weight gradually fill the cavity around the post. Then just brush simulate artificial stump, at the same time giving it the shape of the stump of the tooth, prepared under an artificial crown. After hardening of the plastic tooth stump modify permanently for future top design. Then the model is removed from the tooth and is made of metal casting artificial stump of a tooth with a pin. Strengthen it on the prepared tooth. Make an artificial crown of the tooth and cover it on the tooth stump.

Example. Patient K., aged 50 years. Asked about the prosthetic tooth 25 of the upper jaw.

Objective: tooth dauletova; coronal part of the tooth is destroyed.

production of an artificial tooth crown and covering her stump of a tooth.

After preparation of the remaining part of the tooth for the future crown was removed thinned wall of the tooth. The cavity under the tabbed part of the analyzed forests with the end rounded. The junction of the walls of the cavity in the bottom was zakrugleny not to create dangerous areas for fracture of the tooth. Wall cavity divergent approximately 3-6o. This is necessary to avoid weakening of the tooth root and to calm the introduction of tabs. Then with the help of Largo, Pesso Rimer, scans for pins was developed to 2/3 of the root canal of the tooth. Picked up and installed in the designed canal tooth standard pin (burned-out) with a diameter corresponding to the diameter of the developing tool. The pin was installed so that it stood about on the stump of the natural tooth at the height of the tooth crown. Modeling conducted ash-free sculpturing plastic Patern Resin. This took two rubber containers. One of them poured a monomer, while another poured the powder resin. Special brush or a soft brush 1 or 2 simulated the pin and the tooth stump. The brush was dipped in the monomer, and then, no flicking, no wiping and not touching it, was dipped in powder plastic. The amount of powder n the mi numbers. Formed on the brush liquid plastic fills the cavity around the post, and then similarly shaped artificial tooth stump for the future crown. The result of simulation of an artificial tooth stump should be a continuation of the remaining part of the tooth. When modeling the shape of the stump of the tooth also used the Ironing Board. After 2-3 minutes, the plastic hardens. Using turbine handpiece (required with air-cooling, vacuum and saliva ejector) tooth stump (artificial stump together with the remaining part of the tooth) was modified completely under coating design. If some parts of the walls of the remaining part of the tooth was below the gum on the plastic model was formed by the ledges. After the final treatment of the stump of the tooth model was removed from the tooth, the cavity was closed with a temporary bandage. The model performed metal casting. Practice has shown that tab, obtained by the proposed method has high accuracy and requires little or no fitting. Therefore, after fitting and removal of the sprue tab immediately recorded in the tooth by using glass ionomers cement. After that, according to standard technology Corot produced the metal, includes dissection of the remaining part of the tooth crown, the opening of the root canal and its extension in the upper part of the tooth cavity under the tabbed part of the artificial stump of the tooth, artificial stump of the tooth, the manufacture of metal castings artificial stump of the tooth with the pin, strengthening it on the prepared tooth, making artificial tooth crown and closing her stump of a tooth, wherein the root canal extends under standard pin, pin, and an artificial tooth stump model of ash-free sculpturing plastic, which is inserted into advanced root canal of the tooth pin (burned-out), the length of which is chosen such that so he stood on the stump of the natural tooth at the height of the crown, then brush simulate the pin, to which a brush is dipped into the monomer, and then in the powder ash-free sculpturing plastic, formed on the brush liquid weight gradually fill the cavity around the post, and then just brush simulate artificial stump, at the same time giving it the shape of the stump of the tooth, prepared under an artificial crown, after hardening of the plastic tooth stump finalize finally under Bud

 

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SUBSTANCE: device has crown part, supporting member and intra-root part. The intra-root part is formed as combination of cylindrical and conic regions. Ratio of cylindrical and conic region lengths is equal to 1-3 and one ring-shaped notches of retention point always passes through place the regions 4 and 5 join.

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EFFECT: high strength under chewing loads applied; retained anatomical natural tooth shape and appearance.

FIELD: medical engineering.

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EFFECT: retained anatomical natural tooth shape and appearance; retained crown part.

FIELD: medicine.

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EFFECT: high strength of restored tooth; enhanced effectiveness of restoration in the cases when pin structures are not indicated; long service life under chewing loading.

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EFFECT: simplified production process; high strength of restored tooth crown part.

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SUBSTANCE: method involves applying endodontic treatment of root, forming cylindrical cavity in root canal and shock-absorbing cavity on its base, forming reinforcement pin and ring-shaped crown carcass from gold-coated metal gauze. Root pin part is fixed in root canal after having restored artificial enamel layer from macrofilled composite material in correspondence with single-root premolar anatomical structure and fixing reinforcing carcass on internal surface formed by enamel layer. The tubular root part has longitudinal slit and free gauze wires at the end. The pin part above the root made as free gauze wires in the root part is fixed on the shock-absorbing root cavity surface. The root portion of the pin is formed in conformance with canal cavity shape. Root part length and length of part above the root is selected no to be less than 1/3 of root canal length and not less than less than double-length of the shock-absorbing root base cavity. Crown cavity is layer-by-layer filled with macrofilled composite material. Chewing surface tubercles is restored from macrofilled composite material corresponding to anatomical tooth shape.

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1 dwg

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