Direct method of manufacturing a reinforced grid - adhesive bridges

 

The invention relates to medicine, namely to the dentist, and can be used with the direct method of manufacturing a reinforced grid-adhesive bridges. Fix the composite material of the wire reinforcing element with an artificial tooth in the cavities of the abutment teeth. On approximating surfaces of the abutment teeth from defect produce dissection from the cervical part to the equator and the composite material to form a horizontal support for the reinforcing element in the form of occlusive mesh wire. On vestibular-approximating surfaces at the level of the equator of the abutment teeth form a cavity, and on the oral surface along the entire length of the equator to form the groove. The net perform rectangular shape with a width equal to the length of the defect and the vestibular and oral surfaces of the abutment teeth removed cross-wires, and the remaining longitudinal wire is divided into parts and twisted between them, forming a flexible support beams. After fitting and adjustment made occlusive grid is fixed along its length on the horizontal supports, and twisted wires flexible beams are placed in the prepared cavity and the groove respectively on vestibule Ozanam material. The method allows to recover the direct way anatomical form, function and appearance of the missing tooth in one visit using reinforcing mesh-adhesive bridges, as well as to reduce the cost and improve durability. 4 C.p. f-crystals, 7 Il.

The invention relates to medicine, namely to the dentist, and can be used with the direct method of manufacturing a reinforced grid-adhesive bridges.

The absence of one tooth leads to disruption of the integrity of the dental arch and is a consequence of pathological processes caused by dental caries and its complications, injury, or congenital edentulous.

Currently, the integrity of the dental arch restore using: adhesive dentures, metal-ceramic bridges, solder bridges, solid bridges, plastic dentures, dentures with implant [1-7].

The closest in technical essence is a direct method of manufacturing a reinforced adhesive bridge for posterior teeth by fixing the wire Armira is p>

A disadvantage of the known method is:

1) reinforcing beam is in a horizontal plane of reference and the artificial tooth;

2) design is less stable in vestibuloocular direction, as well as the lack of vestibular and oral beams that affects the structural strength;

3) reinforcing beams are made of orthodontic wire of circular cross section, which offer deep dissection of the cavities;

4) round shape beams malleable deformation and does not provide a full design strength, as the tooth works in compression and bending.

The problem to which the invention is directed, is to restore the gentle method of preparation of the abutment teeth of the dentition integrity and reducing the time to manufacture the bridge.

The technical result of the invention consists in the restoration of the direct method, anatomical form, function and appearance of the missing tooth in one visit using reinforcing mesh-adhesive bridges, as well as low cost and durability of the structure.

The advantages of the direct method of manufacturing a reinforcing grid-adhesive bridge PCI recorded on three surfaces:

- occlusive,

- vestibular,

oral;

3) all cavities and grooves that prepariruetsya for supporting part of the reinforcing beams are formed at the level of the enamel-dentinal borders;

4) on the oral surface is formed a semicircular groove along the length of the equator, which enhances the structural strength;

5) the base-reinforcing beam is fixed on the composite cement (dual-cure) that provides a complete fixation beams;

The technical result is achieved due to the fact that the manufacture of the reinforced adhesive bridge for posterior teeth is carried out by fixing the composite material of the wire reinforcing element with an artificial tooth in the cavities of the abutment teeth, approximating surfaces of the abutment teeth from defect produce dissection from the cervical part to the equator and the composite material to form a horizontal support for the reinforcing element in the form of occlusive mesh of wire, then on the vestibular-approximating surfaces at the level of the equator of the abutment teeth form a cavity, and on the oral surface along the entire length of the equator to form the groove grid perform rectangular formaparent delays, and the remaining longitudinal wire is divided into parts and twisted between them, forming a flexible support beams, after fitting and adjustment made occlusive grid is fixed along its length on the horizontal supports, and twisted wires flexible beams are placed in the prepared cavity and the groove respectively on the vestibular-approximalely and oral surfaces of the abutment teeth, fix and reproduce the missing tooth composite material.

The technical result is also achieved due to the fact that a rectangular grid perform with length not less than the total length of the equator, vestibular, approximalely and oral surfaces of the abutment tooth; that longitudinal wire preparing grid is divided into two parts respectively with each of the vestibular and oral directions; that longitudinal wire preparing grid is divided into three parts, respectively, with each of the vestibular and oral sides, and wire in the middle part and shorten in an alternating bend to the masticatory and cervical part of the tooth; the extreme longitudinal wire with vestibular and oral side for positioning in the groove and the cavity is bent in a semicircle to the center of the occlusal surface.

rowanne support, cavity and grooves; Fig.3-4 - stages of manufacture of a reinforcing element of the grid of Fig.5 is mounted on the abutment teeth reinforcing element of the grid of Fig.6 - embodiment of a grid deflected in opposite directions in an alternating wires the middle part of Fig.7 - finished bridge.

Direct method of manufacturing a reinforcing grid-adhesive bridges is as follows.

Mechanically the surface of the teeth adjacent to the defect, clean toothbrushes using toothpastes, and determine a suitable color according to the standard scale VITA, then put a portion of the composite on the tooth surface for clarification and comparison of the selected color from the source.

After spending isolation from the liquid environment of the oral cavity with the help of the cofferdam.

On approximating surfaces of the abutment teeth from defect produce dissection from the cervical part to the equator. Using composite material to form a horizontal support for fixing occlusal reinforcement mesh (Fig.1). On vestibular-approximating surfaces of the abutment teeth, at the level of the equator form a cavity, and oral surfaces of the abutment teeth along the entire length of aquat the Department of dental defects as a reinforcing element using a metal grid. The mesh is cut in a rectangular shape so that the width of the grid match the length of the defect. The grid is conventionally divided into three parts: the vestibular, occlusal and oral (Fig.3). From the vestibular and oral parts of the grid to remove the vertical wires (Fig.4).

For the formation of the vestibular reinforcing beams from the vestibular part of the grid at wire twisted among themselves, the result is a flexible supporting the vestibular part of the beam.

Similarly molded flexible supporting portion oral reinforcing beams. After fitting and adjustment of reinforcing mesh design first fixed supporting part occlusal reinforcement mesh. The dal fix vestibular and oral flexible beams (Fig.5). After proceed to final restoration, reconstruction and restoration of the missing tooth using composite materials according to the instructions (Fig.7).

In the particular case of the execution of the bridge a rectangular grid perform with length not less than the total length of the equator, vestibular, approximalely and oral surfaces of the abutment tooth.

Longitudinal wire preparing grid can be divided into two parts respectively with each of the vestibular and oraday of vestibular and oral sides, with the wire in the middle part and shorten in an alternating bend to the masticatory and cervical part of the tooth, i.e., in opposite directions (Fig.6).

Extreme longitudinal wire with vestibular and oral side for positioning in the groove and the cavity can be bent in a semicircle to the center of the occlusal surface.

Sources of information

1. Radlinsky C. N., Radlinsky S. C. // Modern technologies of restoration of teeth. Poltava, 2002, S. 40-43.

2. U.S. patent No. 4380435, publ. 19.04.83.

3. U.S. patent No. 4867683, publ. 19.09.89.

4. Kopeikin Century. N. Guide prosthetic dentistry. - 1993, S. 209-230.

5. Gusakov A. M. Clinical dentistry. - 1952, S. 173-178.

6. http://www/masterstom.ru/docs.htm 03.12.2002.

7. http://www/hdent.ru/first.htm 19.12.2002.

Claims

1. Direct method of manufacturing a reinforcing adhesive bridge for posterior teeth by fixing the composite material of the wire reinforcing element with an artificial tooth to the abutment teeth cavities, characterized in that on the approximal surfaces of the abutment teeth from defect produce dissection from the cervical part to the equator and the composite material to form a horizontal bearing knoth at the level of the equator of the abutment teeth form a cavity, and on the oral surface along the entire length of the equator to form the groove grid perform rectangular shape with a width equal to the length of the defect and the vestibular and oral surfaces of the abutment teeth removed cross-wires, and the remaining longitudinal wire is divided into parts and twisted between them, forming a flexible support beams, after fitting and adjustment made occlusive grid is fixed along its length on the horizontal supports, and twisted wires flexible beams are placed in the prepared cavity and the groove respectively on the vestibular-approximal and oral surfaces of the abutment teeth, fix and reproduce the missing tooth with a composite material.

2. The method according to p. 1, characterized in that a rectangular grid perform a length not less than the total length of the equator, vestibular, approximal and oral surfaces of the abutment tooth.

3. The method according to PP.1 and 2, characterized in that the longitudinal wire preparing grid is divided into two parts respectively with each of the vestibular and oral sides.

4. The method according to PP.1 and 2, characterized in that the longitudinal wire preparing grid is divided into three parts, respectively, with each of the vestibular and oral is reseaches part of the tooth.

5. The method according to any of the preceding paragraphs, characterized in that the extreme longitudinal wire with vestibular and oral side for positioning in the groove and the cavity is bent in a semicircle to the center of the occlusal surface.

 

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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.

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