RU2479280C1 - Method for temporary prosthetic replacement for period of engraftment of root portion of endosseous implant - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely dentistry and aims at temporary prosthetic replacement for a period of osteointegration of an endosseous dental implant. A SNAP-like quick-hardening plastic is prepared. A roll is made and pressed to carrier abutments pre-coated with Vaseline. A resin-like stage of polimerisation is followed by a bridge prosthesis by means of a spatula, and grinding and polishing it with rubber pillows. An attachment and an antagonist fitting are to be checked. Small holes are formed in the centre of a grinding surface of the prosthesis to facilitate the removal of the abutment screws. The bridge prosthesis is fixed with permanent glassionomeric cement to the abutments. The holes are closed by a light curing composite. It is followed by grinding and polishing. On the next visit, the composite is removed be means of a ball-shaped bur. The bridge prosthesis is removed together the abutments for inspection of the postoperative cavity.

EFFECT: method enables uniform distribution of implant pressure, re-use of a temporary orthopaedic structure and rigid connection of this structure and the abutment due to the use of the screwed-in inspection constructions made of a plastic or a composite.

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Description

The invention relates to medicine, in particular to dentistry, and may be applicable for temporary prosthetics for the period of osseointegration of the intraosseous dental implant.

A known method of dental implantation, which uses a temporary bridge. The method consists in preliminarily making a gypsum model, modeling the plastic base on the alveolar processes, dissecting the mucoperiosteal flap, implants are introduced by pumping the subgingival part to the bone level, peeling the mucoperiosteal flap around the implants and a semi-impermeable membrane is introduced under each of them a hole in the center through which the supragingival part of the implant is screwed in and a temporary bridge is fixed to the cement. After a month, the temporary bridge is removed, the supragingival parts of the implants are unwound, the semi-impermeable membranes are removed, the supragingival parts are screwed in and a permanent cermet is made (see the description of the invention to RF patent No. 2132660, IPC A61C 8/00, publication July 10, 1999).

In the known method, when installing a temporary bridge, the requirement for a uniform distribution of pressure on the implants is not met, additional costs are required for a semi-impermeable membrane with an additional supragingival part of the implant, the inability to reuse a temporary crown and the exclusion of pressure on the intraosseous parts of permanent implants, negatively affecting the process of their osseointegration.

A known method of temporary prosthetics for the period of engraftment of the root part of an intraosseous implant, including the manufacture of a temporary bridge and its removal after the end of this period, in this case a fixed fiber adhesive bridge is made to prevent trauma to the implant and the surrounding gum (see the description of the patent of the Russian Federation No. 2173114, IPC A61C 13/007, 8/00, publication September 10, 2007).

The disadvantage of this known method is its limited functionality, use only in the presence of supporting teeth.

The objective of the proposed method is to restore the chewing, aesthetic and speech-forming function of the patient when installing the intraosseous part of two-stage implants for the period of osseointegration through the use of screwed provisional structures made of plastic or composite material on integrated intraosseous dental implants. The use of screwed-in temporary crowns creates the conditions for high-quality osseointegration of the intraosseous part of dental implants.

The essence of the claimed invention is as follows.

A method of temporary prosthetics for the period of engraftment of the root part of the intraosseous implant, including the manufacture of a temporary bridge and its removal after the end of this period, in this case a removable bridge is made to prevent trauma to the implant and the surrounding gums, while quick-setting plastic of the SNAP type is kneaded, a roller is made , which is pressed to the supporting abutments, previously lubricated with petroleum jelly, and wait for the onset of the rubber-like polymerization stage, after with a spatula, remove the bridge and treat the prosthesis with rubber circles by grinding and polishing, check the fit and the relationship with the antagonists, form small holes in the center of the chewing surface of the prosthesis that allow you to unscrew the abutment screws, fix the bridge with a permanent glass-ionomer cement to the abutments, and close the holes light-cured composite, perform processing by grinding and polishing, on a subsequent visit, the composite is removed using of boron and remove the temporary bridge with abutments for the audit of the postoperative area.

This allows you to restore the aesthetic and functional usefulness of the dentition with a partial absence of teeth while providing favorable conditions for engraftment of the intraosseous part of the dental implant. The inventive method is illustrated by drawings, where

figure 1 shows: 1 - temporary crown, 2 - abutment, 3 - intraosseous part of the implant;

figure 2 shows: 1 - temporary crown, 2 - abutment, 3 - intraosseous part of the implant, 4 - screw, 5 - Allen key for abutments.

The inventive method is as follows. After the operation to introduce the intraosseous dental implant, we manufacture the provisional structure in the oral cavity (clinical methods) from SNAP quick-hardening plastic.

We install a rubber dam on the implant abutment. We lubricate the abutment with petroleum jelly, knead SNAP plastic (Parcel, USA) and make a roller, which we compress to the supporting abutments and wait for the rubber-like polymerization stage to occur, after which we remove the crown with a spatula or trowel. After the final polymerization, we treat the prosthesis with rubber circles, grind and polish, check the fit, the ratio with the antagonists.

To create access to the screw of the abutment of the dental implant, a small hole is formed in the center of the chewing surface of the provisional structure, which will allow the abutment to be twisted, excluding the stage of removing the temporary crown. We fix the crown on the abutment with Fuji I permanent glass-resin cement. After placing the abutment with the fixed crown on the implant, we close the hole with a light-cured composite. Grind, polish. If necessary, in the next visits, the composite is removed using a fissure or spherical bur, which makes it possible to remove the provisional structure with the abutment and to audit the postoperative area.

The claimed invention allows the screwed provisional structure to be fixedly connected to the abutment, to exclude injury to soft tissues and at the same time to transfer the minimum load in the vertical direction to the implant.

Claims (1)

A method of temporary prosthetics for the period of engraftment of the root part of an intraosseous implant, comprising manufacturing a temporary bridge and removing it after the end of this period, characterized in that a removable bridge is made to prevent trauma to the implant and the surrounding gums, and a quick-hardening plastic of the SNAP type is kneaded, they make a roller that is pressed to the supporting abutments pre-lubricated with petroleum jelly and wait for the onset of the rubber-like polymerization stage of the casing, after which the bridge is removed with a spatula and the prosthesis is treated with rubber wheels by grinding and polishing, the fit and the relationship with the antagonists are checked, small holes are formed in the center of the chewing surface of the prosthesis that allow the screws to be unscrewed, the bridge is fixed with a glass ionomer cement to the abutments, and the holes are closed with a light-cured composite, they are processed by grinding and polishing, and on the next visit, the composite is removed via spherical boron and extracted temporary bridge with abutments for audit postoperative area.

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