Method for manufacturing temporary bridge prosthesis

FIELD: medical engineering.

SUBSTANCE: method involves molding plaster jaw models from obtained anatomical imprints. Then, intermediate modeling of future dental bridge structure is carried out using wax, dental row plaster model segment imprint is produced on the area restricted with bearing teeth, intact dental row plaster die is manufactured, transparent dental kappa is produced from acryl using hot forming and adjusting abutment teeth stumps imprints and marginal area of intermediate portion of temporary dental bridge structure.

EFFECT: high strength; stable tooth row occlusion.

 

The invention relates to medicine, namely to prosthetic dentistry and can be used to replace the defect of dentition and hard tissues supporting teeth at the time of manufacture of the permanent construction of the bridge, the normalization of the height of the lower section of the face and create a stable occlusion of the dentition.

One of the urgent problems in prosthetic dentistry is timely preventive measures, namely, coating the prepared teeth, temporary crowns to prevent displacement of the abutment teeth, which have no contact with the antagonists. In addition, teeth with live pulp from contact with thermal and chemical stimuli can be easily infected. Also vulnerable anatomic equator tooth gingival margin is easily injured, which ultimately can affect the quality of manufacturing permanent construction of the bridge.

Despite numerous publications, the author has not found ways to quickly and accurately make temporary bridges. Known technique of temporary crowns by hot forging using apparatus of the type "MiniStar" ("SCHEU-DENTAL, Germany) does not describe the method of making temporary structures mastoid what's dentures in the presence of dentition defect.

A known method of manufacturing structures temporary bridges, including the following clinical and laboratory stages of manufacturing:

1. obtaining anatomical impression of the dentition;

2. preparation of the abutment teeth on the plaster model of the jaw;

3. modeling of anatomical shape of the abutment teeth and the intermediate part of bridge-like prosthesis;

4. mounting wax reproductions of temporary bridges in dental cuvette;

5. melting out the wax after the hardening of the plaster;

6. preparation of acrylic plastic;

7. fill the plastic free from wax place in a plaster form by the method of compression molding;

8. polymerization of the plastic in a water bath;

9. the disclosure dental cuvette;

One from plaster plastic reproductions of temporary bridges;

11. grinding and polishing plastic reproductions of temporary bridges.

(Kalamkarov HA Orthopedic treatment with the use of metal-ceramic prostheses. - M.: "Media Sphere". - 1996. - P.52-54.).

The disadvantage of this method is large on the complexity and duration of the laboratory stages of making temporary bridges.

The closest to the positive result (the prototype) is a method of manufacturing the design, the products of the bridge, including the following clinical and laboratory stages:

1. obtaining anatomical impression of the dentition;

2. removing poor design of the bridge will be replaced;

3. preparation of fast-hardening plastic;

4. isolation of the abutment teeth with vaseline;

5. filling prints of the bridge rapid hardening plastic and the imposition of the stamp on the dentition to complete polymerization of the plastic;

6. the release time of construction of the bridge of the anatomical impression after curing plastic;

7. grinding and polishing of temporary bridges.

(Semeniuk V. M., Wagner E, Ongoi P.A. prosthetic Dentistry in questions and answers. - M: Medical book, Nizhny Novgorod: publishing house of the ngma. - P.74-75).

The disadvantages of this method is that when a thin-walled intermediate portion of the available irrational or poor dental bridge, subject to withdrawal strength of manufactured construction temporary plastic prosthesis will not be adequate. Moreover, in the presence of dentition defect, the absence or destruction of the intermediate part of the existing unsatisfactory or irrational construction manufacturing temporary plastic prosthesis in a way impossible. The restoration of the defect Ana the ohmic form of support crowns involves additional staff time for applying additional portions of the self-hardening plastic for the necessary correction.

The author proposes a method of fabrication of a temporary dental bridge, allowing its manufacture without preparation of the abutment teeth on the plaster model of the jaw and thus to bring about the restoration of dentition defect.

A positive result of the invention is to increase the strength by optimizing technology temporary bridges.

A positive result is achieved by the fact that the construction of the temporary bridge is in the casting plaster models of the jaws on the obtained anatomical prints, followed by preliminary modeling of the intermediate part of the future construction of the bridge from wax, obtaining the seal area of the dentition plaster model of the jaw, limited by abutments, manufacturer of gypsum stamp intact dentition, mouth guards production of standard clear acrylic blanks by hot forging and subsequent refinement of prints stump of the abutment teeth and the marginal area of the intermediate part of the construction of temporary bridges.

The method is carried out in the following stages:

1. obtaining anatomical impression of the dentition;

2. manufacturer of gypsum models;

3. modeling in the area and the defect of dentition plaster model of the jaw intermediate part of bridge-like denture wax;

4. removing anatomical impression, the impression from the site of the dentition plaster model of the jaw, limited by abutments with a plaster model of the jaw and substituted dentition defect wax reproduction of missing teeth;

5. manufacturer of gypsum stamp intact dentition limited abutments;

6. engraving on plaster stamp border of the anatomical neck of the abutment teeth;

7. accommodation plaster stamp of the dentition in the apparatus for hot stamping (e.g., "Mini-Star" ("SCHEU-DENTAL, Germany);

8. getting a mouthguard required area of the dentition using the method of hot stamping using a standard clear acrylic blanks (for example, "DURAN thickness of 0.5 mm, 125 mm diameter);

9. release mouthguard from plaster stamp;

10. filling Kappa rapid hardening plastic (for example, "Acrylated", "Stoma", Ukraine) and the refinement of prints stump of the abutment teeth and the marginal area of the intermediate part of the construction of temporary bridges with their pre-insulated vaseline;

11. remove excess rapid hardening plastic.

Advantages over known methods is that it is not necessary in the preparation of the abutment teeth on the plaster model of the jaw and the total finishing and polishing the entire surface of temporarily what about the bridges, manufactured in this way, the outer surface of the mouthguard has a glossy structure.

Clinical effect: restore anatomical form abutment crowns and dentition defect, prevention of injury to the pulp of the abutment teeth, thermal and chemical stimuli, infection and inflammation, protection of the gingival margin from mechanical injury by a food bolus, preventing displacement of the abutment teeth in the direction of the defect, creating a stable occlusion for manufacturing of permanent construction of the bridge and favorable conditions for rational prosthetics.

The inventive method enables high-quality restoration of the defect solid tissues supporting the teeth and dentition, reduce the time of its manufacture, to reduce the period of patient adaptation to the constant construction of the bridge and improve the effectiveness of ortopedicheskogo treatment of partial absence of teeth.

The method of fabrication of a temporary bridge, which consists in the manufacture of plaster models of the jaws on the obtained anatomical prints, characterized in that carry out a preliminary modeling of the intermediate part of the future construction of the bridge from wax, obtaining the seal area of the dentition plaster model of the jaw, the OTF is reduced abutments, manufacturer of gypsum stamp intact dentition, mouth guards production of standard clear acrylic blanks by hot forging and subsequent refinement of prints stump of the abutment teeth and the marginal area of the intermediate part of the construction of temporary bridges.



 

Same patents:

FIELD: medicine; medical engineering.

SUBSTANCE: composition has polydimethylvinyl siloxane rubber, filler, silica hydride and platinum catalyst. 3-[(2-oxypropyl methacrylate)aminopropyl]-triethyl silicoformate and stain are optionally included. The ingredients are taken in known proportions. The prosthesis has acryl base and underlying layer under the base produced from the said composition. The composition allows producing underlying layers of high adhesion to prosthesis base.

EFFECT: improved service characteristics.

2 cl, 2 tbl

FIELD: medicine.

SUBSTANCE: method involves forming supporting platforms on supporting teeth for fixing bridge prosthesis beams and repairing supporting teeth crown parts and crowns of teeth under substitution corresponding to their anatomical shape. The supporting platform having completely lacking crown portion is formed at the level of crown part equator by filling cavity layer-by-layer with microfilled composite material, the cavity being built by walls reinforced with gold-plated metal net and restored in advance using macrofilled composite material to the tubercles level, and by producing slit on aproximal wall surface on the same side with the defect. The supporting platform is formed on tooth having partially lacking crown portion as grooves produced at the equator level on vestibular and oral crown part surface restored in advance using macrofilled composite material and reinforced with net carcass fixed on bearing tooth stump. Supporting beam parts are shaped to conform with the shape of the supporting platforms contact surfaces and grooves shape. Gold-plated metal net is mounted on bearing parts of the beams. The net is preliminarily given M-shaped form and the beams are additionally attached to the beams and the beams are fixed to each other using thin metal threads. The grooves are as deep as the net carcass location depth.

EFFECT: high strength, reliability, prolonged service life; restored dental row integrity.

FIELD: medicine.

SUBSTANCE: method involves forming supporting platforms on supporting teeth for fixing bridge prosthesis beams and repairing supporting teeth crown parts and crowns of teeth under substitution corresponding to their anatomical shape. The supporting platform having completely lacking crown portion is formed at the level of crown part equator by filling cavity layer-by-layer with microfilled composite material, the cavity being built by walls reinforced with gold-plated metal net and restored in advance using macrofilled composite material to the tubercles level, and by producing slit on aproximal wall surface on the same side with the defect. The supporting platform is formed on tooth having partially lacking crown portion as grooves produced at the equator level on vestibular and oral crown part surface restored in advance using macrofilled composite material and reinforced with net carcass fixed on bearing tooth stump. Supporting beam parts are shaped to conform with the shape of the supporting platforms contact surfaces and grooves shape. Gold-plated metal net is mounted on bearing parts of the beams. The net is preliminarily given M-shaped form and the beams are additionally attached to the beams and the beams are fixed to each other using thin metal threads. The grooves are as deep as the net carcass location depth.

EFFECT: high strength, reliability, prolonged service life; restored dental row integrity.

FIELD: medicine.

SUBSTANCE: method involves forming grooves along supporting teeth equator line on the side of oral and aproximal surfaces, respectively for fixing bridge prosthesis beams with prosthesis carcass being formed next to it and lateral teeth crowns being repaired. The carcass is built by fixing gold-plated metal net on carrying beam part. The net is preliminarily given M-shaped form and the beams are additionally fixed to each other with thin metal threads. The net is set with its free ends turned towards gingiva and crowns are formed with composite materials corresponding to anatomical shape of teeth under substitution and anatomical properties of the dental row beginning with forming lavage space.

EFFECT: high strength, reliability, prolonged service life and improved esthetic results in removing lateral teeth defects.

FIELD: medicine.

SUBSTANCE: method involves forming grooves along supporting teeth equator line on the side of oral and aproximal surfaces, respectively for fixing bridge prosthesis beams with prosthesis carcass being formed next to it and lateral teeth crowns being repaired. The carcass is built by fixing gold-plated metal net on carrying beam part. The net is preliminarily given M-shaped form and the beams are additionally fixed to each other with thin metal threads. The net is set with its free ends turned towards gingiva and crowns are formed with composite materials corresponding to anatomical shape of teeth under substitution and anatomical properties of the dental row beginning with forming lavage space.

EFFECT: high strength, reliability, prolonged service life and improved esthetic results in removing lateral teeth defects.

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.

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.

FIELD: medicine; medical engineering.

SUBSTANCE: device is manufactured from rectangular plate being metal net or perforated plate. To form reinforcing or fixing pin part, plate sides are joined along the length to give curved shape to the plate. One of plate ends is additionally bent to give form matching counterpart surface of cavity produced in root base. U-shaped prefabricated metal threads are conducted through holes in the fixing part. The threads are paired by twisting. The fixing part of the pin and the so produced fastening member are rigidly connected.

EFFECT: simplified production process; high strength of restored tooth crown part.

2 dwg

FIELD: medical engineering.

SUBSTANCE: method involves forming jaw imprint, casting gypsum model, setting markers onto the model to show tissue volume to be withdrawn. Teeth are cut off from the model and alveolar process is formed. Gypsum copy of the model is produced. Thin stencil is manufactured from colorless plastic subjected to polishing from both sides until it becomes transparent to superimpose the stencil over the jaw and to adjust tissue volume to be withdrawn.

EFFECT: high accuracy in forming prosthesis bed.

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: 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 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 taking anatomical imprint from jaw under prosthetic repair, casting supergypsum model for carrying out parallelometric studies, model duplication, modeling future clasp carcass skeleton from wax, enclosing the wax model into cell filled with gypsum, evaporating wax and filling the arisen cavity with polymer. The clasp carcass model is reproduced as metal one from polymer model for all models taken in production. Polymer for manufacturing clasp carcass model is reactive composition hardening at room temperature and composed of two ingredients taken in 2:1 proportion by weight. The first ingredient portion is based on polymethyl methacrylate, and the second one is polymethyl methacrylate with dimethylaniline added in the amount of 1-2% by mass.

EFFECT: significantly accelerated carcass manufacturing process; high accuracy in reproducing sizes; improved connection of locks and telescopic crowns to polymer carcass; low production costs.

FIELD: medical engineering.

SUBSTANCE: method involves taking anatomical imprint from jaw under prosthetic repair, casting supergypsum model for carrying out parallelometric studies, model duplication, modeling future clasp carcass skeleton from wax, enclosing the wax model into cell filled with gypsum, evaporating wax and filling the arisen cavity with polymer. The clasp carcass model is reproduced as metal one from polymer model for all models taken in production. Polymer for manufacturing clasp carcass model is reactive composition hardening at room temperature and composed of two ingredients taken in 2:1 proportion by weight. The first ingredient portion is based on polymethyl methacrylate, and the second one is polymethyl methacrylate with dimethylaniline added in the amount of 1-2% by mass.

EFFECT: significantly accelerated carcass manufacturing process; high accuracy in reproducing sizes; improved connection of locks and telescopic crowns to polymer carcass; low production costs.

FIELD: medicine.

SUBSTANCE: method involves using obturating prosthesis having basic and auxiliary surface connected to each other with additional anterior, posterior and two lateral vertically arranged surfaces forming a cavity. The anterior and posterior vertically arranged surfaces have slot-like recesses. Reference notch marks are produced on the auxiliary surface near nose. The alveolar process is manufactured as base and wall. Reference notch marks are produced on the base. Wall has holes for making process lightweight. Teeth are set on the wall.

EFFECT: simplified prosthesis design.

6 cl, 3 dwg

FIELD: medical engineering.

SUBSTANCE: device has vestibular and oral parts connected to each other with crosspieces manufactured from orthodontic wire placed in interdental spaces by producing jaw imprints. Working and auxiliary models are molded. To place treating bandage, general clinical equator of all teeth included into the splint is to be determined on working model using parallelometer. Then, space between the clinical equator line and gingiva and a gingiva part 7-8 mm remote from gingival papillae are covered with dental wax layer of thickness equal to or less than 1.5 mm. Next to it, duplicate model is produced for manufacturing the splint having recess equal to wax layer thickness 1.5 mm. Changing wax for transparent plastic, filing and polishing the splint is carried out by applying method of common use.

EFFECT: enhanced effectiveness of treatment.

2 dwg

FIELD: medical engineering.

SUBSTANCE: dental prosthesis (10) is supported by implant and has several basal recesses (13) in prosthesis body (12). One conic cap (7) is fixed in each recess by potting with self-hardening plastic material. Each cap (7) is put on conic shank (6) of prong (2) introduced into conic opening of enosseous implant (1). To produce mentioned prosthesis, prefabricated members only are used. Conic caps (7) are fixed in body (12) of dental prosthesis (10) by potting it during single visit in dentist's room for producing prosthesis ready for use.

EFFECT: high quality of prosthesis manufactured directly in oral cavity.

4 cl, 7 dwg

FIELD: medical engineering.

SUBSTANCE: dental prosthesis (10) is supported by implant and has several basal recesses (13) in prosthesis body (12). One conic cap (7) is fixed in each recess by potting with self-hardening plastic material. Each cap (7) is put on conic shank (6) of prong (2) introduced into conic opening of enosseous implant (1). To produce mentioned prosthesis, prefabricated members only are used. Conic caps (7) are fixed in body (12) of dental prosthesis (10) by potting it during single visit in dentist's room for producing prosthesis ready for use.

EFFECT: high quality of prosthesis manufactured directly in oral cavity.

4 cl, 7 dwg

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 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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