Device for fastening a removable dental prosthesis and method of fixation of removable denture

 

(57) Abstract:

The invention relates to medicine, namely to the field of prosthetic dentistry, and can find application in prosthetics removable dentures. The technical result is to ensure reliable fixation of removable prosthesis and increase its operating life with minimal damage to the teeth. The device has to be installed in the base tooth sleeve with shaped groove on the side surface and mounted on the prosthesis mate, including supporting and fixing elements. Figure slot liners made with narrow plot and advanced relative to the constricted part of the site, adjacent to the open end of the sleeve, the supporting element is designed in the form of a plate corresponding in shape to the open end of the sleeve. The locking element is designed in the form of two elastic wires parallel to the plane of the support element and one another. The distance between the wires is equal to the distance between the walls of the groove in the extended part, their position on the prosthesis corresponds to the position of the extended portion shaped groove, and the distance between the supporting and fixing elements does not exceed the distance from the open end of the sleeve to the extended his cnyh teeth, installs on the prosthesis and the abutment teeth described device, lower dentures prosthetic bed and fix it. 2 S. and 3 C.p. f-crystals, 3 ill.

The invention relates to medicine, namely to the field of prosthetic dentistry, and can find application in prosthetics removable dentures.

Know the use of locking devices for mounting removable prostheses and methods for fixation of removable dental prostheses, in which the prosthesis is fixed to the abutment teeth by using specific devices (SU 1333329 A1, 30.06.87).

The main disadvantage of the known constructions and methods of installation of removable dentures with these designs is that too great a stress on the abutment teeth, with the result that they loosened and damage to the lock structure, therefore, the use of locking fixation requires the preparation of teeth for artificial crowns of not less than 2 teeth.

The technical result achieved by the invention is to provide a reliable fixation of removable prosthesis and increase its operating life with minimal damage to the teeth.

The essence of the invention is to achieve by mentioning the by in the abutment tooth sleeve with shaped groove on the side surface and mounted on the side surface of the prosthesis mate, including the supporting and fixing elements, with shaped groove liners made with narrow plot and advanced relative to the constricted part of the site, adjacent to the open end of the sleeve, the supporting element is designed in the form of a plate corresponding in shape to the open end of the sleeve for overlapping and the locking element is designed in the form of two elastic wires parallel to the plane of the support element and one another, the distance between the wires is equal to the distance between the walls of the groove in the extended part, their position on the prosthesis corresponds to the position of the extended portion shaped groove, and the distance between the supporting and fixing elements does not exceed the distance from the open end of the sleeve to the extended part.

The sleeve may be made in the section of the circular, or oval, or rectangular, or any arbitrary shape.

The distance between the supporting and fixing element is less than the distance from the open end of the sleeve to the extended part, the size of the support element is not larger than the open end of the sleeve.

When the distance between the supporting and fixing elements equal to the distance from the open end of the sleeve to the extended part,service prosthesis mentioned technical result is achieved by that pre-exercise adhesive splinting of the abutment teeth, make installation of the prosthesis and the abutment teeth of the device under item 1, lower dentures prosthetic bed and fix it.

The invention is illustrated by drawings, where Fig.1 shows a sleeve device for fixation of removable dental prosthesis of Fig. 2 - abutment with a built-in sleeve in two projections, Fig. 3 - piece prosthesis defined therein supporting and fixing elements of the response of the device.

The device comprises a sleeve 1 having a bottom 2 and an open end 3. The sleeve is made with shaped groove 4 on the side surface, which has a narrowed area 5 and advanced relative to the constricted part of the area 6 adjacent to the open end 3 of the sleeve. The sleeve may have a cross-section of a circle or oval, or rectangle, or any other arbitrary shape. The sleeve 1 is placed on the abutment teeth. The distance narrowed part of the extension does not matter. The response of the device is installed on the side of the prosthesis facing the abutment tooth, and includes supporting and fixing elements. The supporting element is designed in the form of a plate 7, corresponding in shape to the open end 4 is Ascoli support element and one another. The distance between the wires is equal to the distance between the walls of the groove in the extended part 6, their position on the prosthesis 9 corresponds to the position of the extended portion 6 shaped groove. The distance between the supporting and fixing elements does not exceed the distance from the open end of the sleeve to the extended part. If you bite, the size of the plate 7 can exceed the size of the open end of the sleeve and at the alignment of the prosthesis to the abutment teeth to have support on hard tissues of the tooth. When the tooth, which is installed in the sleeve, has weakened the periodontium, the plate 7 is of such size to freely enter the open end of the sleeve, protecting the locking wires 8 from damage during chewing of food. In this case, the distance between the plate 7 and the wires 8 is less than the distance from the open end of the sleeve to the extended part of the curved groove.

The method of installing a removable denture is as follows.

Pre-exercise adhesive splinting of the abutment teeth to reduce the load on the abutment teeth and distribute it on the next one. To do this, on the perimeter of the number of adjacent defective dentition teeth perform is performed under anesthesia and water-air cooling. Surface cuts pickle acid, washed and dried. The cuts are placed threads (not shown), weaving them in between the teeth, the threads pull, twisting their ends, thread closed with a filling material. As the thread you can use the thread of woven aramid fibers, specific strength which exceeds the same indicator of piano became 8 times. After that, the threads pull, twisting their ends, and close the cuts with threads and interdental spaces between the rows of thread sealing material. You can use any of the known filling materials, for example: the thread is impregnated with adhesive and polimerizuet UV light, in stages threads in each tooth and interdental spaces between the rows of threads masked by the opaque composite material and covered with composite. In conclusion, the surface of composite restorations grinded and polished.

In the abutment teeth set sleeves with scalloped grooves on the side surfaces as described above. The sleeve can be made in advance or be made to place depending on the specific situation. If, for example, available on the abutment tooth fillings Eates with a fixed abutment and locking elements, performed as described above. After fabrication of removable dentures and installation of sleeves on the abutment teeth prosthesis is lowered to the prosthetic bed, while the flexible wire is first compressed, passing the narrowed area, and then open up, getting on the advanced section, and fixed prosthesis. The support plate is located on the hard tissues of the tooth, while its size is larger than the open end of the sleeve, and the distance between the plate and the delay is equal to the distance between the open end of the sleeve and the advanced area (this design is used in situations when the abutment teeth are sustainable). In the case of weakened periodontal design mate carry out so that the distance between the plate and the delay was less than the distance from the open end of the sleeve to the extended part of the curved groove, and the plate had a size and shape corresponding to the open end of the sleeve.

The method is illustrated by the following example. Patient K. asked about prosthetics missing teeth.

The teeth are missing: 14, 15, 16, 17, 26, 27. Shows the manufacture of clasp denture in the upper jaw. 13 tooth has a large filling on the distal surface. At the distal approximal surfaces is satorii wax made sleeves 13 and 25 teeth for placing them in the formed cavities of teeth, next, a wax model, cast replaced with metal. The teeth 13, 12, and 24, 25 siniawan by executing them in a circular cuts, premises cuts in the high-strength fibers, for example of aramid fibers, Platania teeth threads, tightening of the threads and close them with a filling material. 13 and 25 teeth mounted on the adhesive cement liners device according to the invention. Next shot cast of the upper jaw. Cast plaster model made removable prosthesis placed in it return parts, each of which includes supporting and fixing elements. The prosthesis is installed in the oral cavity and fixed. After 6 months the prosthesis retains a good fit, no complaints.

The invention allows for a secure fit removable prosthesis and increase its life without damaging adjacent teeth.

1. Device for fastening a removable dental prosthesis, characterized in that it contains installed in the base tooth sleeve with shaped groove on the side surface, and mounted on the prosthesis mate, including supporting and fixing elements, with shaped groove liners made with narrow plot and advanced relative to the constricted part custodiam the end of the sleeve, and the locking element is designed in the form of two elastic wires parallel to the plane of the support element and one another, the distance between the wires is equal to the distance between the walls of the groove in the extended part, their position on the prosthesis corresponds to the position of the extended portion shaped groove, and the distance between the supporting and fixing elements does not exceed the distance from the open end of the sleeve to the extended part.

2. The device under item 1, characterized in that the sleeve is made in the section of the circular, or oval, or rectangular, or any arbitrary shape.

3. The device under item 1, characterized in that the distance between the supporting and fixing element is less than the distance from the open end of the sleeve to the extended part, the size of the support element is not larger than the open end of the sleeve.

4. The device under item 1, characterized in that the distance between the supporting and fixing elements equal to the distance from the open end of the sleeve to the extended part, and the size of the support element is larger than the open end of the sleeve.

5. The method of fixation of removable denture, namely, that pre-exercise edge prosthesis prosthetic bed and fix it.

 

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Attachmen // 2136246
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The invention relates to medicine, namely to prosthetic dentistry and can be used in orthopedic treatment of patients with partial or complete loss of teeth dentures on artificial supports (implants)
The invention relates to medicine, namely to prosthetic dentistry and can be used in orthopedic treatment of patients with partial or complete loss of teeth dentures on artificial supports (implants)

The invention relates to prosthetic dentistry

The invention relates to prosthetic dentistry

The invention relates to prosthetic dentistry

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

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