A method of manufacturing a solid bridge prosthesis with the use of implanted supports

 

(57) Abstract:

The invention can be used in dentistry for the treatment of patients with partial loss of teeth and periodontal diseases. The invention consists in the fact that the speakers implants put on impression caps and fix with the screw. Perform the print. In the imprint insert the implant analogs. Impression caps are secured on the analogues of the implant screw. Cast model made from plaster. Impression caps replaced aporia 4 metal. Model denture wax. Replace the wax material 2 D. Finished Dental prosthesis 1 is fixed in the jaw, bearing cap 4 screwed by a screw 7 to the corresponding implant 3. The screw head 7 is closed by an insulating gasket 8. Technological openings 6 in the material 2 of the prosthesis 1 from the chewing surface sealed with a filling material 9. Technical result achieved: increase in physiology, simplifying the design, execution design of removable prosthesis, increase service life. 1 Il.

The invention relates to medicine, in particular to the dentist, and can be used in the manufacture of fixed bridges dentures on implants in the sides of the Ontario or predisposition thereto.

A known method of manufacturing a non-removable solid metal bridge prosthesis with support for natural teeth (Prosthetic dentistry, edited by C. N. Kopeikina. - M.: Medicine, 1988, S. 189, 195). The prosthesis is fixed to the artificial teeth by artificial crowns, which are an integral part of a prosthesis.

A disadvantage of the known method of manufacturing a non-removable bridge denture is primarily to use as a reference natural teeth, which eventually leads to their slacking. This reason is not possible to use the known method of manufacturing a solid bridge prosthesis with periodontal disease or predisposition thereto. This reduces the physiology of the known method. In this known method does not allow the prosthesis is molded, which requires its removal by destruction in case of repair of a prosthesis or treatment of the teeth or gums under the denture.

Thus, there is a method of manufacturing a non-removable solid metal prosthesis when the implementation does not ensure the achievement of the technical result consists in increasing fiziologicheskii to the present invention is a method of manufacturing a non-removable solid metal-ceramic prosthesis implanted with metal supports, and.with. USSR N 1577779 AND 61 WITH 13/00, 15.07.90.)

In accordance with the method remove the seal jaw with protruding implants, manufactured by imprint model, which made the caps on the exposed part of the implant with subsequent forming, fabrication and fixing of a fixed prosthesis. In this case, the caps are made of thin crowns that in the manufacture of solid prosthesis form a single whole with it. After fabrication of the prosthesis with crowns, narashima, fixed on the protruding parts of the implant.

The disadvantage of this method consists in the following. Because the method provides for rigid fastening of the prosthesis on the implants through crowns, this complicates the manufacture of solid prosthesis and makes it spin. The latter does not allow, if necessary, to treat the tissue under the denture without its destruction. In addition, it is known that the distribution of functional stresses in the alveolar bone under the denture increases with increasing support elements of solid prosthesis. However, in the known construction the increase in the number of supporting implants will result in a corresponding increase in the number of crowns that complicates the way innymi, the latter reduces the strength of the prosthesis and its service life. These deficiencies in turn, contribute restrictions on the number of anchor implants, which reduces the physiology of the prosthesis.

Thus, there is a method of manufacturing a non-removable solid metal-ceramic prosthesis on the implants when the implementation does not ensure the achievement of the technical result consists in increasing the physiology of the prosthesis produced by the proposed method to simplify the design, to enable the construction of removable prosthesis, to increase service life.

The present invention solves the problem of creating a method of manufacturing a solid bridge prosthesis on implants, which allows to achieve the technical result consists in increasing the physiology of the prosthesis, manufactured using the proposed method, to simplify the design, to enable the construction of removable prosthesis, to increase service life.

The technical result is achieved in the following way. Offer in the way of procedures and operations, including tacking with jaw with protruding material predetermined prosthesis, fixation of the prosthesis in the jaw, ensure observance of technology of the manufacture of the dental prosthesis, which further ensures its durability, reliability and physiology. The use of impression caps that are put on the implants and implant analogs, respectively, in operation of the seal jaw with protruding implants and operations of casting from plaster model of the jaw, allows to form in the body of the future of solid bridges available volumes for metal bearing caps. Due to the fact that in the pre-implants perform blind axial threaded hole, it is possible to secure the implant impression and metal screw caps. However due to the fact that all operations are performed when screwed in the screws, it is possible to form the hole for the screw in the material of the prosthesis from the chewing surface, which further allows for the installation and retention of the prosthesis on the implants and, if necessary, its removal from them. Since the construction of the future prosthesis model from wax screwed to the implant analogs metal bearing caps, then after replacing in astavliaut him whole, at the same time performing the function of the valve than reinforce the design of the prosthesis. The implementation of the screw holes from the chewing surface and then sealing them with a filling material such as photopolymer, ensures durability of the fixing holes and the possibility careful alignment in this place the occlusal surfaces of the denture that does not reduce its physiology. The use of implanted foot prosthesis allows you to refuse the use of natural teeth to support the bridge, which increases the physiology of the proposed prosthesis, eliminating the loosening of the teeth and can be used in periodontal diseases. Rigid fixation of the implant in the jaw eliminates the mobility of the prosthesis in the horizontal plane. Due to the fact that to secure the finished prosthesis in the jaw to the appropriate implants fasten the screw abutment caps, rigid fixation of the prosthesis on the implants, which provides the construction entity and eliminates the vertical offset of the prosthesis. It also increases its physiology. The possibility of rigid fastening of the prosthesis on the implants by means of a threaded cosmonet removal of the prosthesis to the jaw without destruction, i.e. the ability to perform design of solid bridges removable. This increases the service life of the prosthesis, and also allows as a prophylactic treatment of tissues under the denture and emergency, which increases the physiology of the prosthesis.

The use of prosthetic material of the Dental material D can improve the distribution of functional stresses in the bone under the denture, which reduces the speed of its atrophy and, therefore, improves the physiology of the proposed prosthesis. This is explained in the following. From the literature it is known that the minimum level of stress intensity, in which there is atrophy of the alveolar bone due to its functional underloading is 16 MPa. (Vallancourt N., Pilliar, R. M., Me Cammond D. Finite element analisis of crestal bone loss around porous-coated dental Friadent // J. Applied Biomater, 1995, V. 6, pp. 267-282, the same, "Factor affecting crestal bone loss with dental implants partially covered with a porous coating a finite clement analisis"// Int. J. Oral Maxillofac. Jmplants, 1996, V. 11, 3, pp. 351-359).

The authors calculated and experimentally proved that for one-piece implants from Dental material D performed in accordance declare the level of the average values of stresses in the bone under the denture higher than for solid bridges of CJC with kayalami, more soft and plastic and, as a result, more susceptible to the effects of masticatory load. In addition, also experienced by the authors proved that the mechanical properties of the Dental material D allow it to be used for the manufacture of a non-removable cast bridge dentures on implants in the lateral part of the lower jaw. The use of Dental material D can increase the number of implants, virtually reducing the strength of the prosthesis, as the holes for the screws are small, and the sealing of the filling material ensures the restoration of the integrity of the prosthetic material.

Due to the fact that before the incorporation of technological holes for the screw head of the screw is closed by an insulating gasket, excludes the ingress of filling material on the screw head and thereby the preservation of the threaded connection in the operating condition, i.e., allows removal of the prosthesis to the jaw after removal of filling material from the holes, which increases the service life of the prosthesis.

Thus, the proposed method of manufacturing a solid bridge prosthesis with the use of implanted supports in the implementation provides a method, to simplify the design, to enable removal of prosthesis without fracture, to increase service life.

The drawing shows a cast bridge dentures on implants (vertical incision) made by the proposed method.

Cast fixed bridge dental prosthesis on the implant contains a denture 1, made of material 2 Dental D and cylindrical implants 3, made for example of titanium. In the material of the prosthesis 1 plated metal bearing caps 4, made in the proposed example in the form of a truncated cone. The caps 4 are vertical axial bore 5, which coincide with the axis of the respective implant 3. The material of the prosthesis from the chewing surfaces are made through channels 6 axis which coincides with the axial bore 5 in the cap 4. The cap 4 is connected with the corresponding implant 3 by connecting the screw 7. Outer sides of the channels 6 is hermetically closed by an insulating gasket 8, which is placed on the screw head 7, and the sealing material 9. The prosthesis 1 is rigidly fixed to the implant 3, which are rigidly fixed to the bone 10 of the jaw. A method of manufacturing Celina is satisfactory in implants perform blind axial threaded hole. Before running imprint on each implant wear impression cap and fix it with a screw in the threaded hole of the implant. Then perform the seal jaw with protruding implants. After running the imprint of the screws twisting, the finished print is removed from the implant together with impression caps and insert into it the implant analogs. Impression caps again fixed on the implant screw. Then cast from plaster model of the jaw. Upon completion of the casting process twisting the screws and the impression made by the model jaw removed. Impression caps removed. Then the analogues of the implants put on and fasten the metal bearing caps and modeling of wax design of the future prosthesis. The wax is replaced by the material of the prosthesis, which is used as the material D. Finished Dental prosthesis is fixed in the jaw, which bearing caps fasten the screw to the respective implants. The screw head is closed by an insulating gasket and the holes in the material of the prosthesis is sealed with a filling material.

Previously in the bone of the lateral part of the lower jaw implant support prosthesis 1, for example, cylindrical implants 3 from t the structure of the dental prosthesis 1 in the sequence, determined by the proposed method. The finished prosthesis 1 is installed on the supporting implant 3. Through the channel 6 and the opening 5 in the bearing cap 4 is passed the screw 7 and tightly screw connection fixed prosthesis 1 on 3 implants. After that, the screw head 7 is placed an insulating gasket 8. From the chewing surface of the channel 6 is closed with the sealing material 9, such as a photopolymer.

If necessary, removal of the prosthesis drill the seal, take out the gasket 8 and twisting the screw 7.

A method of manufacturing a solid bridge prosthesis with the use of implanted supports, including taking impressions with jaw with protruding implant manufacturer to imprint models, modelling wax design of the prosthesis, replacement of wax on the material of the prosthesis, fixation of the prosthesis in the jaw, wherein the first implant perform blind axial threaded hole, and before running imprint on each implant wear attigny cap and fix it with a screw in the threaded hole of the implant, and then perform the print, and then twisting the screws, the impression is removed together with impression caps and inserted into the analogues of the pulse is then twisting the screws, the impression made by the model of the jaw is removed, the impression cap is removed, then the analogues of the implants put on and fasten the metal bearing caps, then simulate wax the future design of the prosthesis, then the wax is replaced by the material of the prosthesis, which is used as a Dental material D, the finished prosthesis is fixed in the jaw, which bearing caps fasten the screw to the corresponding implant, the screw head is closed by an insulating gasket and the holes in the material of the prosthesis from the chewing surface sealed with a filling material.

 

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FIELD: medical engineering.

SUBSTANCE: method involves producing an opening of diameter reaching 2 mm with diamond or hard alloy bore in adhesive cover after preparing abutment tooth and prosthesis or widening already available perforation also to diameter of 2 mm. The prosthesis is set on the abutment tooth and place is marked for creating and directing pin-canal in the area of cutting one-third of the frontal abutment tooth or in the lateral abutment tooth equator area. The pin-canal direction is to correspond to path for introducing the prosthesis. The pin is screwed-in with screwdriver and holder to a depth of about 2 mm into dentin. The prosthesis is set on the abutment for making control. The pin is filed-off to adhesive cover layer after having fixed the prosthesis on composition cement.

EFFECT: prolonged service life; high functional value.

FIELD: medical engineering.

SUBSTANCE: method involves producing an opening of diameter reaching 2 mm with diamond or hard alloy bore in adhesive cover after preparing abutment tooth and prosthesis or widening already available perforation also to diameter of 2 mm. The prosthesis is set on the abutment tooth and place is marked for creating and directing pin-canal in the area of cutting one-third of the frontal abutment tooth or in the lateral abutment tooth equator area. The pin-canal direction is to correspond to path for introducing the prosthesis. The pin is screwed-in with screwdriver and holder to a depth of about 2 mm into dentin. The prosthesis is set on the abutment for making control. The pin is filed-off to adhesive cover layer after having fixed the prosthesis on composition cement.

EFFECT: prolonged service life; high functional value.

FIELD: medical engineering.

SUBSTANCE: method involves taking anatomical imprint from jaw under prosthetic repair, casting supergypsum model for carrying out parallelometric studies, model duplication, modeling future clasp carcass skeleton from wax, enclosing the wax model into cell filled with gypsum, evaporating wax and filling the arisen cavity with polymer. The clasp carcass model is reproduced as metal one from polymer model for all models taken in production. Polymer for manufacturing clasp carcass model is reactive composition hardening at room temperature and composed of two ingredients taken in 2:1 proportion by weight. The first ingredient portion is based on polymethyl methacrylate, and the second one is polymethyl methacrylate with dimethylaniline added in the amount of 1-2% by mass.

EFFECT: significantly accelerated carcass manufacturing process; high accuracy in reproducing sizes; improved connection of locks and telescopic crowns to polymer carcass; low production costs.

FIELD: medical engineering.

SUBSTANCE: method involves taking anatomical imprint from jaw under prosthetic repair, casting supergypsum model for carrying out parallelometric studies, model duplication, modeling future clasp carcass skeleton from wax, enclosing the wax model into cell filled with gypsum, evaporating wax and filling the arisen cavity with polymer. The clasp carcass model is reproduced as metal one from polymer model for all models taken in production. Polymer for manufacturing clasp carcass model is reactive composition hardening at room temperature and composed of two ingredients taken in 2:1 proportion by weight. The first ingredient portion is based on polymethyl methacrylate, and the second one is polymethyl methacrylate with dimethylaniline added in the amount of 1-2% by mass.

EFFECT: significantly accelerated carcass manufacturing process; high accuracy in reproducing sizes; improved connection of locks and telescopic crowns to polymer carcass; low production costs.

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