The solution included defects of the dentition
The invention relates to medicine, namely to prosthetic dentistry and can find application in prosthetics removable adhesive prostheses. The technical result - improved aesthetics, increased strength and easy attachment of the prosthesis to the abutment teeth, increasing the life of the prosthesis. The solution included the dentition defect lies in the preparation of the abutment teeth from the side of the defect within the enamel on half the width of approximal surfaces, the cutting of circular grooves, laying and tensioning high-strength threads in the grooves of the abutment teeth through the holes in the intermediate part of bridge-like prosthesis, which is then closed composite material. The imposition of an intermediate part of the exercise with simultaneous laying in grooves high-strength threads in the form of loops, which densely cover the abutment teeth and the free ends are fixed inside the body of the prosthesis in the V-shaped holes formed on both sides of the intermediate part. The intermediate part of bridge-like prosthesis is fixed to the abutment teeth high-strength threads from each side, with the free ends of each of the threads running in the groove of the supporting tooth, p is t through the hole on the occlusal surfaces of the denture. 2 Il.The invention relates to medicine, namely to prosthetic dentistry and can find application in prosthetics removable adhesive restorations.A known method of prosthetics in partial loss of teeth using adhesive bridges, providing minor grinding of hard tissues of teeth and attaching the prosthesis to the abutment teeth using composite mass [Gerald Barraek. The etched cast restoration - Clinical techniques and long-term results. Quintessence Int. - 1993; 24. - P. 701-713].According to this method (Maryland bridge) prepare certain surfaces of the abutment teeth and made Celerity design with coated intermediate part.The disadvantages of this method include the lack of aesthetics, because the locking tabs are not lined, low life, you can replace one missing tooth and the lack of power to support a number of mobile teeth, as well as the fact that you are experiencing physiological micromovement is the structural failure on the border connection with tooth tissues.The closest to the invention is a method consisting in preparer what eriala, in doing so, the preparation of the abutment teeth from the side of the defect within the enamel on half the width of approximal surface to the equator of the teeth at an angle of 3-6, towards the path of insertion of the prosthesis with the groove on the bottom border of the dissection. Next, make an intermediate portion with a longitudinal vertical notch to the level of the grooves, with subsequent continuation of the perimeter of the abutment teeth and their connection with the intermediate part and each other high strength aramid yarn, fastened in the grooves of the abutment teeth and the inside of the intermediate part. [RF patent №2146505 And 61 With 8/00, 20.03.2000].The disadvantages of this method include lack of aesthetics (the lining of the prosthesis is done using only composite materials), quite a large area of the clamping surface, which must be closed composite material, which strength is low, and also the disadvantages associated with the fixation of the prosthesis.The purpose of this invention is to improve the aesthetics, durability and ease of attachment of the prosthesis to the abutment teeth, increasing the life of the prosthesis.This objective is achieved in that the solution included defects of the second surface, cutting out circular grooves, laying and tensioning high-strength threads in the grooves of the abutment teeth, through the holes in the intermediate part of the bridge, each side of which is fixed to the abutment teeth through a heavy duty thread and close the composite material, the distinguishing feature is that the imposition of an intermediate part of the exercise with simultaneous laying in grooves high-strength threads in the form of loops, which densely cover the abutment teeth and the free ends are fixed inside the body of the prosthesis in the V-shaped holes formed on both sides of the intermediate portion, with the free ends of each of the threads running in the groove of the supporting tooth, pass through holes with vestibular and oral sides of the intermediate part and go through the hole on her chewing surface.The method is as follows: the lateral surfaces of the abutment teeth from defect dissect as reference sites. Area preparation is half the width of the side surface from the equator to the chewing surface. On the abutment teeth thin fissure Burr cut circular grooves, passing just above the equator of the tooth. Preprime or polyether impression materials. In the resulting model (from super plasters) produce an intermediate portion of a metal frame with a lining of ceramic material or composite materials, with the pre-selected type and color (Fig.1). After fitting of the finished design in the oral cavity on the abutment teeth dissect grooves within the enamel practically around the perimeter of the teeth. Next, the field preparation is treated with phosphoric acid, washed it and dried the surface. On the prepared site applied adhesive and composite chemical or dual-cured, after which make the imposition of an intermediate part with simultaneous laying in grooves high-strength threads in the form of loops, which densely cover the abutment teeth and the free ends are fixed inside the body of the prosthesis in a V-shaped holes on both sides of the intermediate part (Fig.2). Then the filament is stretched and tied in knots, and fix them tightly with the help of composite material within the body of the prosthesis and tooth grooves. Surface composite restorations carefully verify, process finirai and polished.The method may be combined with any shows recovery of the abutment teeth (veneerstheir dental tissues.Example: a patient Century, 35 years old, came about prosthetics missing 36 and 37 of the tooth. Made diagnostic model. The ways of introduction of the prosthesis. On the lateral surfaces 35 and 38 prepared foothold under anesthesia and water-air cooling. Area preparation within the enamel at an angle 3-6from the equator of the tooth to the chewing surfaces within half the width of the side surface. Next, the resulting two-layer silicone impression material. In the laboratory was made of metal-ceramic suspension prosthesis in the form of an intermediate part of the support legs and a V-shaped hole inside of the prosthesis. After fitting of the finished design in the oral cavity on the abutment teeth were prepared circular grooves. Next, the area of dissection were treated with acid, washed with water and dried and covered with adhesive. After that conducted the imposition of the bridge with the simultaneous laying in grooves high-strength threads that covered the abutment teeth in the form of loops and their free ends were fixed inside of the prosthesis on both sides of the prosthesis, its oral surface. Next, the yarn was stretched and was fixed restoration was carefully calibrated and polished.This method allows you to provide a minimum of grinding dental tissues and restore included defects of dentitions more than one tooth length due to the “binding” of the abutment teeth and the intermediate part of bridge-like denture high strength thread in a single unit, making the prosthesis resistant to any chewing loads, and thereby increase the life of the prosthesis with the full restoration of chewing, aesthetic (due to the possibility of facing frame of the prosthesis as ceramic, and composite materials) and phonetic features.
ClaimsThe solution included defects of the dentition by preparation of the abutment teeth from the side of the defect within the enamel on half the width of the side surface piercing circular grooves, laying and tensioning high-strength threads in the grooves of the abutment teeth through the holes in the intermediate part of the bridge, each side of which is fixed to the abutment teeth through a heavy duty thread and close the composite material, characterized in that the imposition of an intermediate part of the exercise with simultaneous laying in the groove h and the body of the prosthesis in a V-shaped openings, made from both sides of the intermediate portion, with the free ends of each of the threads running in the groove of the supporting tooth, pass through holes with vestibular and oral sides of the intermediate part and go through the hole on her chewing surface.
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.
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
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
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