RU197474U1 - Polyether etherketone metal abutment base - Google Patents

Abstract

The utility model relates to medicine, namely to dentistry, implantology and orthopedics, and can be used to replace defects in the dentition by means of prosthetics using implants. Development of the shape of a titanium base for the manufacture of an individual abutment based on polyetheretherketone by thermal pressing, which allows it to be used in various clinical situations and meets the requirements for use on any implant systems with an internal connection, the possibility of adhering to the principle of switching platforms, resistance to any chewing loads is an urgent task to be solved when development of the proposed model. The device includes an axial titanium cylinder, screw holes for fixing on the implant, a spike for connecting to the implant platform. A distinctive feature of the device is the formation of trapezoidal grooves on the lateral surfaces in three planes, and the teething profiles are formed from titanium at a distance of 1.5-2 mm from the level of the implant platform. 1 s.p. f-ly, 1 ill.

Description

The device is intended for use in dentistry, implantology and orthopedics to replace defects in the dentition by means of prosthetics using implants.

A metal (titanium) base made by the milling method for various systems of osseointegrated two-component dental implants is presented. The base allows you to make individual abutments from polyetheretherketone without an adhesive base by thermal pressing. The design of the product promotes a high-quality combination of metal and polyether etherketone, which helps to withstand chewing loads and does not require additional retention with a composite material.

Known abutment BioHPP Sky elegance [found on the Internet http://www.bredent.com/de/bredent/], designed for the manufacture of individual abutments based on polyetheretherketone (PEEK) by thermal compression technology. The disadvantages of this abutment are the inability to comply with the principle of switching platforms, limited use on only 10 implant systems.

Known system of tooth restoration [Pat. US 10188488, priority dated 06/03/2016], comprising an implant with a tip, a cylindrical body and an open end having an annular shoulder, the cylindrical body including an abutment including a drive for interfacing with the drive head of the drive tool and an engagement section with a tooth component with a threaded surface, moreover, the threaded surface is internal.

Thus, the development of the form of a titanium base for the manufacture of an individual abutment based on polyetheretherketone by thermal pressing, which allows it to be used in various clinical situations and meets the requirements for use on any implant systems with an internal connection, the ability to adhere to the principle of switching platforms, resistance to any chewing loads, is an urgent task to solve when developing the proposed model.

The device (Fig. 1) consists of an axial titanium cylinder (1) with a height of at least 5 mm and a diameter of at least 4.5 mm, holes for the screw (2) for fixing on the implant, has grooves on the lateral surfaces in three planes (3 ) with a depth of at least 1.5 mm and a height of 4 mm in a trapezoidal shape, a metal cone of the gingival profile (4) with a height of at least 1.5 mm and a spike (5) for connecting to the implant platform.

The base is intended for the manufacture of individual abutments and crowns made of polyetheretherketone by thermal pressing for any implant systems.

At the preliminary stage, the prosthetic bed is scanned using CAD / CAM systems.

CAD / CAM technologies for assessing the prosthetic bed, which are widely used in dentistry. RU 2407481 describes a technology for scanning abutments and the entire model as a whole under a bridge to obtain a virtual model using standard CAD / CAM technology, as well as scanning the entire model as a whole without extracting a removable fragment with unprepared teeth.

In the patent RU 2373893, the authors use computer methods for the manufacture of dental prostheses using the programmed CAD / CAM technology. The surface of the dentition of physical models is scanned, two-sided scanning of the occlusal register is performed, thereby forming a complex digital model of the occlusal register, and the generated complex digital model of the occlusal register and the surface of the dentition models are virtually matched.

Next, the individual cone of the gingival profile (4) is simulated, which is virtually matched with the supragingival part of the titanium cylinder (1), which has openings (2) and grooves (3) selected from the library of simulation programs. The product is milled, installed on the model, then the stage of modeling and pressing PEEK is performed. The design of the titanium base allows, subject to manufacturing technology, to provide a reliable mechanical connection between titanium and PEEK without an adhesive base.

Thus, a distinctive feature of the device is the formation of a profile of eruption from titanium at a distance of 1.5-2 mm from the level of the implant platform, the creation of the shape of a titanium base in the form of a trapezoid with holding, anti-rotation grooves.

Description to figure

figure 1. Abutment metal base

1 - axial titanium cylinder;

2 - screw holes for fixation on the implant;

3 - grooves of a trapezoidal shape;

4 - metal cone of the gingival profile;

5 - a spike for connecting to the implant platform.

Claims (2)

1. The metal base for the abutment, including an axial titanium cylinder, screw holes for fixing on the implant, a spike for connecting to the implant platform, characterized in that the trapezoidal grooves are made on the three sides of the surfaces. 2. The metal base for the abutment according to claim 1, characterized in that the teething profiles are formed of titanium at a distance of 1.5-2 mm from the level of the implant platform.

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