Bridge

 

(57) Abstract:

The invention relates to medicine, namely to the dentist, and is intended to eliminate the defects of the dentition. The technical result - improving the efficiency of the chewing function, structural strength, a reduction in the morbidity for the patient, minimal destruction of dental tissues supporting the teeth. Bridge prosthesis includes a support element made in the form of cast metal beams produced by the laboratory method and fixed composite material on the abutment teeth and artificial teeth. The beam is made rotated on a plane, for installation on the front teeth one part of the beam is located vertically in the base and the artificial teeth, and for installation on the rear teeth of the other part is horizontal, and the artificial teeth are made of composite material on the model. 1 Il.

The invention relates to medicine, namely to the dentist, and is intended to eliminate the defects of the dentition. The invention is intended for use in dentistry to restore a missing tooth or two. The technical result consists in ensuring the recovery of missing the y) and ensuring it is firmly in place.

Retainer (retainer, the fixer) is alinaitwe metal part of the beam with the restored using composite material of one or two artificial teeth. The ends of the retainer are fixed on the crown of the abutment teeth in a pre-created cavities with composite material. Molded metal beam may be in the form of a perforated plate or grid.

A known method of manufacturing adhesive bridge structures proposed Radlinsky S. C. (dent Art 2 - 98,, pages 28-40). Used direct method of prosthesis single missing tooth with a reinforcing beam from a wire or optical fiber (Ribbond, Glas Span). The disadvantages of this method include: adhesive bridge construction is used for repair of a defect of one tooth; a long period of manufacturing of the prosthesis directly in the mouth of the patient (3-5 hours); a support beam attached to the standard form; manufactured according to this method, the design does not have sufficient strength.

It is also known a method of manufacturing adhesive bridges, the proposed Petrikas O. A. (New in dentistry" 5/98,, pp. 27-63). Reference part adhesive suit the vestibular surface of the tooth. Body AMP is coated with a ceramic or plastic. The disadvantages of this method include: an increase in the thickness of the abutment teeth with the oral surface; the mouth is visible metal; you need to be healthy enamel on the lingual-contact surfaces of the abutment teeth; contraindication to this design is that the rotation of the abutment teeth.

The famous bridge, containing the supporting element is made in the form of cast metal beams produced by the laboratory method and fixed to the abutment teeth (U.S. Pat. DE 3335642, published. 1984).

The purpose of the invention is improving the efficiency of the chewing function, increased structural strength, a reduction in the morbidity for the patient, minimal destruction of dental tissues supporting the teeth.

The drawing shows a bridge.

This goal is achieved by the fact that the manufacture of the intermediate part is carried out by an indirect method on the model, with the subsequent fixing of the composite material on the abutment teeth. In the absence of one or two teeth prepariruetsya abutment teeth to create a retention points. Both jaws are removed casts. Cast models. On the abutment teeth cavity zakrya (clasp) wax is modeled reinforcing beam, which in the absence of front teeth is only in the vertical plane and passes through the center of the artificial tooth in the area of the body and cervix of the crown. In the absence of lateral teeth reinforcing beam is located only in the horizontal plane and support the artificial teeth. In the absence of the third upper tooth reinforcing beam undergoes a rotation in the plane: in the base and artificial teeth is held vertically, and in supporting the first premolar horizontally. In the absence of two teeth, for example, the third and fifth (see the drawing), a reinforcing beam is immersed in a cavity on the occlusal surfaces of the fourth tooth. You need to keep washing the space between the reinforcing beam and the model. Wax design involves the placement of retention points on the abutment teeth. Spend the substitution of wax metal. Model processed the resulting structure, followed by the final treatment by a sand-blast apparatus, vapor degreasing, apply top coat varnish. On the model of doctor of composite material restores missing teeth. Carry out finishing of artificial teeth. In the oral cavity of the patient superimposed cofferdam. After fitting in pornih teeth cavities and retention points of the prosthesis. Then apply the adhesive system of the latest generation (for example. Primer Bond 2.1). Fix the intermediate portion of the composite material (e.g., prism). Finishing the design is carried out as for fillings made of composite material. When restoring anterior teeth metal construction covered with epiceram.

Bridge containing the supporting element is made in the form of cast metal beams produced by the laboratory method and fixed composite material on the abutment teeth and artificial teeth, characterized in that the beam is made rotated on a plane, for installation on the front teeth one part of the beam is located vertically in the base and the artificial teeth, and for installation on the rear teeth of the other part is horizontal, and the artificial teeth are made of composite material on the model.

 

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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 cleaning abutment teeth from deposit using diamond drill. Saw cuts are made in the abutment teeth in parallel to dental axis. The cuts are treated with acid and adhesive system and filled with fluid composite material. Glass fiber material is cut in advance in strips and set into the saw cuts arranging directivity vector in perpendicular to dental axis building in this way fastening system from fiber glass where oppositely directed fibers are interwoven with each other. Then the fastening system is filled with the fluid composite material or resin. Stump is repaired with condensed composite. Final prosthesis modeling is carried out using micro-hybrid material. Post-bonding is carried out using arbitrary protector material.

EFFECT: high retention capability; uniform chewing load distribution.

3 cl, 3 dwg

FIELD: medical engineering.

SUBSTANCE: device has beam for fixing artificial denture, cramp iron and bracket. The cramp iron is connected to the beam in a way allowing its arrangement on oral surface of abutment tooth. The bracket is set as cantilever on beam edge to be placed in longitudinal slot of abutment tooth that is produced in chewing side of the abutment tooth inclined to oral surface. Longitudinal slot bottom is rounded in cross-section. Longitudinal slot walls are smoothly rounded in cross-section to meet chewing surface of the abutment tooth. At least a part of bracket is manufactured to fit longitudinal slot bottom in its cross-section.

EFFECT: improved features insetting removable prosthesis; provided natural chewing pressure transfer upon abutment tooth.

4cl, 3 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.

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