Method for producing permanent dental prostheses

FIELD: medical engineering.

SUBSTANCE: method involves preparing anchoring teeth surface by forming a cavity in each of them along anatomical equator line. The cavity is arranged on lateral side facing dental row defect. Artificial tooth inlays are fixed in the cavities. Each through cavity is 1.5 mm deep, 2.0 mm wide and at least 2.0 mm high.

EFFECT: retained individual chewing surface pattern on anchoring teeth.

2 dwg

 

The invention relates to medicine, namely to prosthetic dentistry and is designed to replacement of defects of dentition.

A known method of manufacturing a non-removable dentures, including preparation of surfaces of the abutment teeth by forming in each of them along the line of the anatomic equator excavation, which set a plate made in the form of notches, and fixed contact surface of the composite material (EN 2026034 C1, 10.01.1995).

Disadvantages: the method has a high risk of rasamanjari and broke off the supporting parts of the prosthesis due to the extremely small depth of cavity cavity (0.5-1.0 mm).

The invention is aimed at solving problems: increasing the strength of attachment of the prosthesis to achieve a good aesthetic result.

These objectives are achieved through the preparation of the surfaces of the abutment teeth by forming in each of them along the line of the anatomic equator of the cavity on the side facing the defect of dentition, and fixing them in a composite material of the tabs of the artificial tooth. The new method is that the cavity perform end-to-end, depth 1.5-2.0 mm, a width of 2.0 mm and a height of not less than 2.0 mm

The way depicted in the drawings, there is shown a diagram of the fabrication of the prosthesis, figure 1 is a view of the prosthesis from the front, figure 2 - view of the prosthesis is at the top.

The method is as follows: from the lateral sides, facing the defect of dentition, dental abutment 1 is formed through the horizontal cavity 2 a depth of 1.5-2.0 mm, a width of 2.0 mm and a height of not less than 2.0 mm, so that she passed along the line of the anatomic equator of the tooth. Upon receipt of the working and supporting casts use partial plastic dental impression spoon to remove the casts in occlusion. Take off work and supporting casts and cast models. Model sagopafeat in the articulator in the position of Central occlusion. Using wax on a working model model tab 3 and the metal part 4 of the artificial tooth 5. After replacing the wax on the metal molding, anatomic shape of the artificial tooth recreate the ceramic mass 6 on a working model. After sintering the ceramic material, the tabs 3 and an artificial tooth 5 pin is stuck in the model and in the mouth. An artificial tooth 5 set between the supporting teeth 1, tab 3 is placed in the cavity 2 of the abutment teeth 1 and fix them on glass ionomers cement (e.g., Fiji). The prosthesis to the patient can be made in two visits. Before preparation of the teeth is necessary to evaluate x-ray of the abutment teeth for the purpose of studying the localization of the pulp chamber. The introduction of the prosthesis at its fixing side: with oral article the Rhone in the vestibular side.

Example. Patient P., 35, filed a complaint on difficulty chewing. When collecting history revealed that 36 tooth removed about complicated caries more than five years ago, objectively: 37 and 35 teeth fixed, percussion is painless, on the x-ray pathological formations in the area of periodontal 37 and 35 of the teeth is not found, the teeth have pronounced the equator. Diagnosis: partial secondary edentulous in the complicated caries 111 class at Kennedy on the lower jaw, loss of masticatory efficiency 12% Agapova.

After determining the color of the abutment teeth, with the sides facing the defect of dentition, dental abutment formed horizontal end-to-end cavity depth of 2.0 mm, a width of 2.0 mm and a height of 2.2 mm On the working and supporting casts poured the plaster model and sagipsul them in the articulator. Using wax on a working model simulated the metal portion of the artificial tooth and the tab. The wax was replaced by metal molding, anatomic shape of the missing tooth has recreated the ceramic mass. After sintering the ceramic material of the artificial tooth and the tab has probasbly on the model and in the mouth. The artificial tooth is installed between the supporting teeth and tabs placed in the cavity of the abutment teeth in the Oro - vestibular direction. Locking tabs carried out a stack is oonoerned cement Fuji 11.

The technical result of the invention is to increase the strength of attachment of the prosthesis and achieve a good aesthetic result.

A method of manufacturing a non-removable dentures, including preparation of surfaces of the abutment teeth by forming in each of them along the line of the anatomic equator of the cavity on the side facing the defect of dentition, and fixing them in a composite material of the tabs of the artificial tooth, characterized in that the cavity is performed through a depth of 1.5-2.0 mm, a width of 2.0 mm and a height of not less than 2.0 mm



 

Same patents:

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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The invention relates to medicine, namely to prosthetic dentistry

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: method involves preparing anchoring teeth surface by forming a cavity in each of them along anatomical equator line. The cavity is arranged on lateral side facing dental row defect. Artificial tooth inlays are fixed in the cavities. Each through cavity is 1.5 mm deep, 2.0 mm wide and at least 2.0 mm high.

EFFECT: retained individual chewing surface pattern on anchoring teeth.

2 dwg

FIELD: medicine; medical engineering.

SUBSTANCE: method involves calculating proportions of bound and free composite surfaces and C-factor values. Adjustment coefficients are additionally introduced for taking retention substrate properties in consideration and estimate is found from formula , where CSF is the configuration-substrate factor; Si is the hard dental tissues; Sj is the composite contact surface; Sk is the metal contact surface; Sm is the free surface area; A is the hard dental tissues retention capability (A=1); B is the composite material retention capability (B=2); C is the metal retention capability (C=3). CSF value growing relative to the C-factor, low adhesion level and increased polymerization stress influence caused by contemporary composite filling materials shrinkage is considered to be the case.

EFFECT: objectively described polymerization shrinkage process; reduced risk of traumatic complications.

1 dwg, 1 tbl

FIELD: prosthetic dentistry.

SUBSTANCE: strong tooth is prepared, model is cast and doubled. Washing-though space is modeled in the area of defect onto doubled model by means of high-test plaster. Prepared cavities at strong teeth are filled with silicon mass. The mass is polymerized and is subject to cut in such a way that the mass disposes 1-mm lower than occlusion surface does. Mass is polymerized, removed from strong teeth and removed to get a bracket. Non-polymerized layer is applied to cavities and to plaster inside washing-off space in the area of defect to get thickness of 0,2-0,3 mm, cut of half-rope in form of a loop is submerged into the layer and closed. The other part of rope is applied and pressed by bracket. Excess material is removed. Polymerization is performed and intermediate part is formed. Adhesive dental bridge is put off, adjusted and fixed inside mouth's cavity.

EFFECT: improved adhesion force of prosthetic appliance with strong teeth.

2 cl, 3 dwg

FIELD: medicine; orthopedics; dentistry.

SUBSTANCE: method can be used for getting quicker accustomed to dentures. Method of selection of adhesive matters for fixing overall removable dentures of upper jaw is based upon preparation of denture made for patient, application of fixing matters onto denture, mounting of denture onto patient's jaw, keeping time for beginning of fixing, application of external load and determination of breaking-off force of denture. Selection is made for two steps. During first step the selection is made onto model of patient's jaw, which model reproduces anatomic shape of denture bed. During second step, the selection is made directly onto patient's jaw; time intervals fro two to three preparations are no less than 24 hours, which preparations were selected during first step. During second step the breaking-off force is applied 5-7 minutes after fixation. Breaking-off load is formed step by step to keep it growing till denture breaks off along A line. Fixing matter is selected by means of comparison of values of breaking-off strength while taking subjective senses of patient into account.

EFFECT: reduced accommodation time; reduced time for training of uasge of denture.

3 dwg, 2 ex, 3 tbl

FIELD: medicine, therapeutic stomatology.

SUBSTANCE: one should apply special medicinal preparations immobilized upon gelatin-glycerin splin, the foundation of which is presented as 28.57% gelatin, 17.86% glycerin and 53.57% water. Moreover, during the first 3 d one should apply malavit thrice daily after breakfast, dinner and before nocturnal period. Then, during 3 d patients should apply medicinal splints with trental in the morning, and before nocturnal sleeping - those with thymogenum, at final stage of therapy for 3 d it is necessary to use splints with collargol in the morning and before nocturnal sleeping. The innovation enables to interrupt inflammatory process efficiently and short period of time due to high-degree releasing of medicinal substances at strong fixation of the splints applied.

EFFECT: higher efficiency of therapy.

2 cl, 1 ex

FIELD: medicine.

SUBSTANCE: method involves preparing teeth for making crown, taking imprint, producing collapsible model, forming fibrous carcass and subjecting it to polymerization. Teeth preparation is carried out with 0.8-1.3 mm wide supragingival circular shelf and with 1.5-2.0 mm wide on occlusion surface. The collapsible model is covered with rubber-like lacquer and dried at room temperature. Thin creamer layer is applied on dental stumps. Prosthesis carcass formed preliminarily measuring required fibrous ribbon length, impregnating it with liquid composite, cutting 6 or 8 equal strips and superimposing them one over the other to produce multi-layer ribbon, stretching it all its length along and determining its middle. Then, the finished ribbon is fixed on stump 1 as throw-on loop. Ribbon ends are connected and twisted in spiral with maximum tension on connection beam side to the next stump 2, that is wrapped with ribbon ends remaining free and fixed on stump 2 prepared for setting crown with end overlap of 2-3 mm or fixed on stump 2 prepared as inlay. Then, The carcass is layer-by-layer covered with creamer: pericervical layer, dentine and enamel. After having been polymerized, the ready prosthesis is polished.

EFFECT: producing large dental bridges without using metal; improved functional properties.

2 cl, 5 dwg

FIELD: medicine.

SUBSTANCE: invention refers to stomatology and concerns composition for dental prosthesis fixation. Fixing composition for jaw prosthesis contains adhesion activator, thickener, paraffin-like substance and fine-grained filler. Thickener is carbomer with dynamic viscosity specified by standard Ph. Eur. 4, from 2000 to 26000 mPa-s. Composition provides adherence within 50 to 100 N and continuous fine consistency.

EFFECT: production of composition for dental prosthesis fixation with improved adherence.

2 ex, 1 tbl, 3 cl

FIELD: medicine; stomatology.

SUBSTANCE: agent for fixation of removable tooth prostheses on a basis of organoelemental glycerogel contains propolisum, chitosan, and as organoelemental glycerogel - silicotitaniumorganic glycerogel with the structure 2Si(C3H7O3)4·Ti(C3H7O3)4·xC3H8O3·yH2O, where 20≤x≤30, 80≤y≤120. The invention can be used at prosthetics of patients for correction of removable tooth prostheses, at adaptation to them and in the course of their constant use.

EFFECT: the agent possesses the improved adhesion; increased time of fixation also contains simultaneously essential silicon and the titanium; actively influencing on a mucosa of oral cavity.

2 ex, 1 tbl, 1 dwg

FIELD: medicine; stomatology.

SUBSTANCE: compound includes extract of leaves of burdock, sea-buckthorn oil, oil of mint peppery, polymer PVC, Na-CMC, glycerine and purified water. The compound is obtained by mixing of film-former solutions: polyvinyl alcohol, sodium carboxymethyl cellulose in optimum parity with addition of medical products of phytogenesis and plasticiser - glycerine.

EFFECT: increase of adhesive properties, abilities to film forming, prolongation of action of the entered medical products, having antiinflammatory and antimicrobial effect.

12 tbl, 1 dwg

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