Without removal collapsible bridge

 

The invention relates to medicine, where in the dental practice orthopedic prostheses bridge design. The essence of the invention is that crown made integral with polubalete having a hole with internal thread, while the intermediate part of the body of the bridge has grooves under palubicki with holes for rigid connection of the whole structure with screws. Palubicki made trapezoidal and are located not less than 3 mm below the occlusal surfaces of the crowns. The distance from the cap screw to the surface of the trapezoidal palubicki performed at least 1.5-2 mm, the screw heads on the foil, and deepening over the screws filled composite. The technical result - the ability to use in all cases, the prosthesis converts the teeth with minimal processing, which eliminates trauma to the pulp and a significant decrease of the tissues supporting the teeth, when racemetirosine one of the crowns, there is no need to knock another crown, which avoids complications such as damage to the facing layer, the broken stump of a tooth, injury, periodontal disease, as it is enough to remove the intermediate part and pereaminirovanii the crown. When this collapsible prosthesis commensurate with the rigidity of a fixed prosthesis. 3 Il.

The invention relates to medicine, where in the dental practice orthopedic prostheses bridge design.

Following construction of fixed bridges: solder, solid, metal, plastic, ceramic, plastic, composite bridges with pin teeth [1, 2, 3] .

Known non-removable composite bridges [1, 2]. The design of composite dental bridge is used when converging teeth. After prepisovanie crowns and casting models with crowns, sagipsul models in occludator simulate the part of the body of the bridge at crown made on the inclined tooth. The simulation thus leading to the medial wall was steep and strictly parallel to the axis of the other crowns, and on the chewing surfaces and part of the medial wall create a recess-shaped cavity for the tab and having the shape of a truncated pyramid. The wax model is cast from metal and you solder to the crown, and then simulate the main part of the body of the prosthesis, which will have a ledge that is included in the cavity created in the area of the prosthesis, soldered to the crown on nalbina must be carefully prepared part of the castle so to them there was no backlash. Then glue all the parts of the prosthesis sticky wax, gypsum and spaivayut crown with the main body part of the bridge [2].

This design has drawbacks: it is difficult hygienic cleaning of the body of the prosthesis [1] , the inability to carry out restoration work at the breakdown of body composite bridges most effective laboratory method without removing the prosthesis to the abutment teeth; when racemetirosine or damage one abutment crowns need to withdraw the other abutment crowns; when carrying out any remedial measures in the area adjoining a body of composite bridges need to withdraw structures, with possible complications such as failure cladding layer, the broken stump of the reference tooth, trauma or periodontal disease, the mucosa of the oral cavity; there are difficulties in the application of this design in the front teeth area; possible mobility in the castle part of the body of a compound of the bridge and, as a consequence, overload of periodontal supporting teeth [2].

The closest analogue is non-removable composite bridge containing crowns, made in one piece with p is for connecting elements in the form of axes (EN 2026651 C1, 20.01.1995).

A disadvantage of the known construction is that the pivot joint allows movement in one plane and limits the movement of the crown relative to the intermediate part up, which makes it impossible for the fit of the finished prosthesis on the abutment teeth without additional grinding when the distance between the tails of the abutment teeth is less than the distance between their chewing surfaces, especially when the axis of the abutment teeth are in different planes.

The technical result of the invention is able to be repaired with minimal removal of tooth structure and the exception depulpation and prezentirawe one crown without removing the other and store the intermediate part. The technical result is achieved due to the fact that in the construction without removal collapsible bridges crowns are used along with polubalete having a hole with internal thread, the intermediate portion without removal collapsible bridges have grooves under palubicki with holes for screws which are fixing this part of the prosthesis to the crowns with polubalete, palubicki made not less than 3 mm below the occlusal surfaces of the cutting edge of the crown. On the -2 mm, on the screw heads on the foil, and deepening over the screws filled composite.

The invention is illustrated graphics, where Fig.1 shows a General view of the bridge of Fig.2 - abutment teeth, Fig.3 - the body of the bridge.

The prosthesis is made in the following way: after receiving high-strength split model prepare the model of the abutment teeth dental bridge 1 depending on whether the design is subsequently wrapped around or its component parts will be solid, on the model of the abutment teeth wax model of the workpiece - crown 2, using the template at a distance of 1-1 .5 mm from crown set graphite rod with a diameter of 2.5-3 mm with thread 3 and simulated wax trapezoidal polubelca 4 from the base to the alveolar ridge thickness not less than 1.5-2 mm, which ends graphite rod at a distance of 1-1,5 mm, the excess graphite rod breaks so that the wax palubicki graphite was not less than 1-1,5 mm, moving the model using the template and a graphite rod simulated wax billet-crown with probally on the other abutment tooth with the aforementioned method, both the workpiece p is dilaut graphite and correct thread, twist the screw 5 into the hole palubicki, from which the cap screw to the surface of the trapezoidal palubicki should be at least 1.5-2 mm. In crown with polubalete installed on the model, simulated intermediate part of the body of the bridge 6, on the one hand for relief palubicki addressed to the mucous membrane, on the other, restoring the anatomical shape of the tooth so that the screw heads are left inside the wax composition and were covered with wax no less than 1-1,5 mm, then remove the wax on the cap screw, the screw twisting, remove wax procurement body of the bridge and give it to the caster. After casting of the metal intermediate part of the handle, adjust the slots 7 to probalem, proshlifovat addressed to the mucosal surface palubicki in the area of the screw, polished, then the design is checked on the model and in the mouth, crowns with polubalete fixed on the abutment teeth cement, is introduced, the intermediate part and is fixed with screws to probalem on the screw heads are superimposed foil 8 with a thickness of 0.03 mm, deepening over the screws are filled composite. In order to disassemble the structure, it is sufficient to remove boron composite, foil and Unscrew the screw.

Thanks constructiln to achieve parallelism of the walls of the abutment teeth, to allow dissection with minimal removal of tooth structure and to exclude depulpation abutment teeth; when racemetirosine one abutment crowns is enough to remove the intermediate part and pereaminirovanii this crown without removing the other, which avoids complications such as damage to the facing layer, the broken stump of a tooth, trauma to the periodontium; when the chips facing the body of the prosthesis is possible restoration of the most effective laboratory method; it is possible to carry out hygienic cleaning of the body of the prosthesis, remove Tartar, podpalivajut during preventive examinations; if necessary, you can increase the overview of the surgical field, to facilitate the carrying out of remedial measures in the field without removal collapsible bridge prosthesis; decreases the negative impact of the shrinkage of the metal during casting of the body of the prosthesis, as the prosthesis consists of the parts and the holes in the body of the prosthesis is easily adjusted in the desired napravlenii; can be used in the prosthesis of the front teeth, as in this case, the base palubicki is located in the horizontal vestibular-lingual direction. If necessary, can be made without removal collapsible bridges of different metals with the aim of improving matology. - M., 1969

2. C. N. Kopeikin, L. M. Demmer. Prosthodontic appliances. - M., 1985,

3. E. C. Borowski, C. N. Kopeikin, A. A. Kolesov, A., Shargorodsky. Dentistry. - M., 1987,

4. A. I. Doinikov. "On enhancing the aesthetic properties of dental prostheses in orthopedic treatment of patients". - M., 1970,

5. I. B. Chegamos. "To the question of the construction of bridges on the basis of theoretical calculations". - M., 1973

6. N. D. Borodyuk. "Towards a rational design and aesthetic form of fixed dental prostheses. - L., 1970,

7. A. B. Grevers. "Single and double construction". New in dentistry, 1999, 2, page 13.

Claims

Without removal collapsible bridge containing crowns, made in one piece with polubalete that have holes, and an intermediate part made with grooves for polomolok and holes for fasteners, with which the crown is connected to the intermediate part, wherein palubicki made trapezoidal and are located not less than 3 mm below the occlusal surfaces of the crowns, the holes in polomolok made with internal thread, which is installed with the connecting screws, the distance from slepc is deepening over the screws filled composite.

 

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FIELD: medical engineering.

SUBSTANCE: dental prosthesis (10) is supported by implant and has several basal recesses (13) in prosthesis body (12). One conic cap (7) is fixed in each recess by potting with self-hardening plastic material. Each cap (7) is put on conic shank (6) of prong (2) introduced into conic opening of enosseous implant (1). To produce mentioned prosthesis, prefabricated members only are used. Conic caps (7) are fixed in body (12) of dental prosthesis (10) by potting it during single visit in dentist's room for producing prosthesis ready for use.

EFFECT: high quality of prosthesis manufactured directly in oral cavity.

4 cl, 7 dwg

FIELD: medicine.

SUBSTANCE: method involves forming three horizontal and vertical grooves on the side of oral and aproximal surfaces of each of the supporting teeth, building bridge prosthesis carcass from rectangular gold-coated metal net fixable in the horizontal grooves by means of three supporting members manufactured from longitudinal wires of the net preliminarily prepared on its opposite sides and polypropylene set fixable in the vertical grooves and additionally attached to the metal net with thin metal threads and sequentially forming crown portion of the tooth with composite materials corresponding to its anatomical shape, gold-plated metal net and polypropylene set reinforced on oral and vestibular surface, respectively.

EFFECT: high strength, reliability and flexibility of repaired dental row; reduced risk of traumatic complications; accelerated frontal tooth substitution process.

FIELD: medicine.

SUBSTANCE: method involves forming grooves along supporting teeth equator line on the side of oral and aproximal surfaces, respectively for fixing bridge prosthesis beams with prosthesis carcass being formed next to it and lateral teeth crowns being repaired. The carcass is built by fixing gold-plated metal net on carrying beam part. The net is preliminarily given M-shaped form and the beams are additionally fixed to each other with thin metal threads. The net is set with its free ends turned towards gingiva and crowns are formed with composite materials corresponding to anatomical shape of teeth under substitution and anatomical properties of the dental row beginning with forming lavage space.

EFFECT: high strength, reliability, prolonged service life and improved esthetic results in removing lateral teeth defects.

FIELD: medicine.

SUBSTANCE: method involves forming supporting platforms on supporting teeth for fixing bridge prosthesis beams and repairing supporting teeth crown parts and crowns of teeth under substitution corresponding to their anatomical shape. The supporting platform having completely lacking crown portion is formed at the level of crown part equator by filling cavity layer-by-layer with microfilled composite material, the cavity being built by walls reinforced with gold-plated metal net and restored in advance using macrofilled composite material to the tubercles level, and by producing slit on aproximal wall surface on the same side with the defect. The supporting platform is formed on tooth having partially lacking crown portion as grooves produced at the equator level on vestibular and oral crown part surface restored in advance using macrofilled composite material and reinforced with net carcass fixed on bearing tooth stump. Supporting beam parts are shaped to conform with the shape of the supporting platforms contact surfaces and grooves shape. Gold-plated metal net is mounted on bearing parts of the beams. The net is preliminarily given M-shaped form and the beams are additionally attached to the beams and the beams are fixed to each other using thin metal threads. The grooves are as deep as the net carcass location depth.

EFFECT: high strength, reliability, prolonged service life; restored dental row integrity.

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