Method for manufacturing adhesive dental bridge

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

 

The invention relates to medicine, in particular for orthopedic, therapeutic dentistry. This method of manufacturing adhesive bridges (hereinafter - AMP) can be used in the manufacture of the AMP directly into the mouth in the area of the defect of dentition without the participation of the technical laboratory during one visit.

Known methods of manufacturing non-removable AMP, which consists in receiving impressions, casting models, making a metal frame, the intermediate part and the fixation of the prosthesis with the help of adhesive on the abutment teeth using composite material. The supporting elements of the AMP are modified occlusal onlays and cast clamp. The fixation of the prosthesis is carried out at a glue base or composite materials (see A.S. Shcherbakov, Petrikas O.A. restoration with partial loss of teeth adhesive bridges. Medical abstract journal. Section XII, No. 11, 1988).

The drawback of such prostheses is that the fixation of the adhesive is not always resists chewing load. In 19% of cases it leads to loss of dentures for the first year of use. Also, such a prosthesis cannot be made when the inclination of the abutment teeth, which limits their application (patent RU 2148386 C1).

Also the known method is rotazione small defect of dentition, namely:

in the preparation of one of the abutment teeth under artificial crown; defining the boundaries of the secondary support element on the second abutment tooth; taking impressions; casting the working and auxiliary models.

the manufacture of an artificial tooth with a crown on one of the abutment teeth and the additional supporting element in the form of occlusal pads on the second tooth; commit crown cement, and the second support element - composite plastic (ed. St. No. 1799572).

The disadvantage of this method of prosthesis is the need to califofnia one of the abutment teeth under artificial crown, in addition, the mounting of such a prosthesis is very fragile, as it is fixed console and not protected against lateral and vertical loads.

The closest is a method of manufacturing a metal-ceramic AMP, which consists in the preparation of the abutment teeth, taking impressions, casting the working and auxiliary models, fabrication of the prosthesis.

The fixation of the prosthesis is carried out by filling zones poutine formed with lateral surfaces of the prosthesis and the abutment teeth adhesive material so as to maintain the washing space (patent RU 2148386 C1).

The disadvantages of this method is that:

- you grinding lingual or palatal surfaces of the teeth;

the prosthesis is izgotovlenie in the technical specifications, has an easy way of introduction, and accordingly does not have sufficient mechanical retention;

- linking of the composite and metal RAKATAK discredited itself during operation of the prosthesis, which indicates a bad connection between the metal elements of the prosthesis and tooth tissues.

The essence of the proposed method lies in the fact that before you begin the abutment teeth clean from plaque diamond boron; make cuts in the abutment teeth parallel to the axis of the tooth; the cuts treated with acid and an adhesive system, fill flowable composite; glass, pre-cut strips, set in cuts, with the vector orientation of the fibers perpendicular to the axis of the tooth (formed fastening system made of fiberglass, where the counter-directional fibers on the surfaces of adjacent strips of fiberglass are intertwined with each other). Then the mounting system fill flowable composite or resin. Using condensed composite restores stump. The final modeling of the prosthesis may be made of any microhybrid drug. Technique postbinding perform arbitrarily chosen protector.

In the lateral parts of the prosthesis molars and premolars cuts on the abutment teeth are also parallel to the axis of the tooth (if necessary, their mo is but to do two to four).

For the manufacture of the AMP front teeth with just one or two cuts.

All the work is done by the direct method without using technical laboratory during one visit to the doctor.

The technical result obtained using the proposed method, is as follows:

achieved a high degree of retention and even distribution of masticatory load on the abutment teeth (when using the proposed method of fixing the AMP can withstand the load several times higher than when using all previously known methods) due to the chemical binding mounting system of the prosthesis to the tooth tissues and the location of the mounting system along the axis of the abutment teeth. This is due to the distribution of masticatory load along the axis of the abutment teeth, and not the slopes of the Palatine or lingual surfaces of the abutment teeth, as in the standard technology;

saving without great damage to the teeth, between which the prosthesis is installed (these teeth are small cuts, which immediately closed chemical equivalent of filling), saved, lingual and palatal surfaces of the teeth;

more reliable fixation of the AMP due to the fact that between tissues of the tooth and the mounting system formed the link at the chemical level;

the aesthetic properties of the prosthesis at ucchini due to the absence of metal elements of the prosthesis;

the rate of production of the prosthesis and the lack of attachment to the technical lab allows you to extend the capabilities of doctors, therapists and orthopedists.

In figure 1, 2, 3 presents step-by-step fabrication of the prosthesis of the lower cutter, where 1 - cuts for anchor system Figure 2 - installed mounting system, 3 - the final appearance of the prosthesis.

Example. Before you begin the abutment teeth clean from plaque with professional pastes and brushes or Air-flow.

Diamond boron make cuts in the abutment teeth parallel to the axis of the tooth. Cuts treated with 32% phosphoric acid for 15 s, washed off the air / water spray. Throughout the manufacturing AMP direct method using light-curing lamp. Process cuts the adhesive system. Cuts fill flowable composite, install the mounting system of fiberglass Fibro-kor, so that the counter-directional fiber strips Fibre Kor intertwined with each other. Then the mounting system fill flowable composite or resin. Then use recovery stump condensation from the composite Alert.

The final modeling of the prosthesis may be made of any microhybrid drug.

Technique postbinding perform arbitrarily chosen protector.

The method was tested clinically.

Cab manufacturing adhesive bridges, consisting in the preparation of the abutment teeth by cleaning away plaque from the implementation of the cuts, the processing of their acid and the fluid filling the composite fixation mounting system; facing the future of the prosthesis composite materials, characterized in that the prosthesis is made directly in the mouth in the area of the defect of dentition; in the abutment teeth perform parallel to the axis of the tooth cuts, which set the glass in the form of strips, with the vector orientation of the fibers perpendicular to the axis of the tooth, forming a mounting system made of fiberglass, where the counter-directional fibers on the surfaces of adjacent strips of fiberglass are intertwined with each other; further, the mounting system fill flowable composite or resin; the tooth to restore condensed composite; perform final modeling of the prosthesis microhybrid drug, postbaking.

2. The method according to claim 1, characterized in that for the manufacture of the AMP when prosthetic molars and premolars in the lateral parts of the abutment teeth perform two to four cuts.

3. The method according to claim 1, characterized in that for the manufacture of the AMP front teeth on the abutment teeth make one or two cuts.



 

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Adhesive denture // 2125420

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

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