RU138607U1 - DENTAL IMPLANT - Google Patents

Abstract

Dental implant, consisting of an intraosseous porous part made of metal rubber, a metal rod CHARACTERIZED in that it consists of a metal rod having the same diameter in length and a metric thread coated with calcium phosphate ceramic and from 2-4 metal rubber bushings with a decreasing outer diameter in the apical direction; the porosity on each sleeve of metal rubber is heterogeneous and increases in the apical direction from 1 μm. - up to 1 mm.

Description

The invention relates to the field of dentistry, in particular to the group of dental implants intended for implantation in the jaw bones.

A dental implant with osseointegration surface structure is known, comprising a conical crown part and a cylindrical intraosseous part combined into a permanent connection with a neck and beveled with two external longitudinal protrusions, beveled in the direction from the cervical zone to the apical zone and located in one diametrical plane, transverse grooves located between the longitudinal protrusions , and the surface of the intraosseous part microstructured in the form of many microcavities of elliptical shape, located hydrochloric between the transverse grooves, characterized in that the surface part applied across intraosseous biocompatible nanostructured coating of zirconium dioxide, [1].

The disadvantages of this implant are insufficient primary fixation of the implant in the socket of the extracted tooth during immediate implantation, insufficient contact area of the porous part of the dental implant with the bone bed due to the small volume of porosity, and the impossibility of penetration of the porous part of the implant into the unevenness of the bone bed.

A well-known dental implant with personalized properties, consisting of an all-metal part, a porous part made of metal rubber, characterized in that ½ of the distal all-metal part is 25-90% wider than ½ of the proximal all-metal part; the distal part of the all-metal part is threaded; the proximal part of the all-metal part of a cylindrical shape has a thread with a length of 1-95% of the length of the proximal all-metal part; the porous portion of cylindrical metal rubber has a pore size of 5-300 μm, with personalized damping properties in the pressure range (p) of 0.1-20 MPa; the outer diameter of the porous part is equal to the diameter of the distal all-metal part; the inner diameter of the porous part is equal to or greater by 1-20% of the diameter of the proximal all-metal part; consists of a support washer with a superstructure connection module having a central channel; consists of a restrictive nut with a thread on the inner diameter moving along the proximal all-metal part, restricting the movement of the support washer with the superstructure connection module; the proximal all-metal part in the end section has a hexagonal shape 1-3 mm long; the superstructure connection module is made in the form of an external hexagon [2].

The disadvantages of this implant are insufficient primary fixation of the implant in the socket of the extracted tooth during immediate implantation, insufficient area of contact between the porous part of the dental implant and the bone bed due to the small volume of the porous part, the impossibility of penetration of the porous part of the implant into the unevenness of the bone bed in the apical region.

A dental implant is known, consisting of an intraosseous porous part in the form of a cylinder made of metal rubber, a metal rod is placed inside the cylindrical cavity, characterized in that the screw intraosseous apical section has an outer diameter smaller than the inner diameter of the sleeve made of metal rubber; the sleeve made of metal rubber is coated with calcium phosphate ceramics; the intermediate sealing threaded section has a diameter larger than the inner diameter of the sleeve of metal rubber and a surface self-tapping screw section; the thread pitch for all sections is the same or the thread pitch for the sealing section is made smaller than for self-cutting sections [3]. The disadvantages of this implant are insufficient primary fixation of the implant in the socket of the extracted tooth during immediate implantation, insufficient area of contact between the porous part of the dental implant and the bone bed due to the small volume of the porous part, the impossibility of penetration of the porous part of the implant into the unevenness of the bone bed in the apical region.

This implant is taken as a prototype.

The purpose of creating a useful model is to increase the adaptation of the porous part of the implant to the walls of the bone bed, to create the primary stability of the device, to provide a sufficient area of contact between the porous part of the dental implant and the bone bed, to allow the porous part of the implant to penetrate into the unevenness of the bone bed in the apical region.

This goal is achieved in that it consists of a metal rod having the same diameter in length and a metric thread coated with calcium phosphate ceramics and from 2-4 metal rubber bushings with a decreasing outer diameter in the apical direction; the porosity on each sleeve of metal rubber is heterogeneous and increases in the apical direction from 1 μm. - up to 1 mm.

Comparison of the proposed device with others known in the field of medicine showed its compliance with the criteria of a utility model.

A useful device is illustrated in graphic material. The figure 1 is a section A, a dental implant is shown consisting of a metal rod (1) having the same diameter in length and metric thread coated with calcium phosphate ceramics; and consists of 2-4 bushings made of metal rubber (2) with a decreasing outer diameter in the apical direction; the porosity on each sleeve (2) of metal rubber is heterogeneous and increases in the apical direction from 1 μm. - up to 1 mm.

The device is used as follows.

In the formed bone bed, 2-4 metal rubber bushings with a decreasing outer diameter in the apical direction are introduced; the porosity on each sleeve of metal rubber is heterogeneous and increases in the apical direction from 1 μm. - up to 1 mm. Using a torque wrench, a metal rod is screwed in, having the same diameter in length and metric thread coated with calcium phosphate ceramics. A gingiva former is installed.

Achievements of the technical result are confirmed by clinical examples of implantation of the proposed device in the clinic of maxillofacial surgery of Samara State Medical University.

Clinical example 1. Patient K., 56 years old. The diagnosis is a partial absence of teeth in the lower jaw, Kennedy Grade 1.

The patient underwent surgery. Under local anesthesia Sol. Ultracaini D.S. - 1.8 ml., An incision was made in the oral mucosa, the alveolar process of the lower jaw was skeletonized, a bone bed was formed with the help of cutters. Four bushings made of metal rubber with a decreasing outer diameter in the apical direction were introduced into the formed bone bed; the porosity on each sleeve of metal rubber is heterogeneous and increases in the apical direction. The porosity of the first sleeve is 1 μm., The second sleeve 50 μm., The third 80 μm., The fourth 1 mm. Using a torque wrench, a metal rod is screwed in, having the same diameter in length and metric thread coated with calcium phosphate ceramics.

The gum shaper is installed. The wound is sutured. After the implant osseointegration is completed, a tooth prosthesis is installed on the implant.

Clinical example 2. Patient K., 46 years old. The diagnosis is a partial absence of teeth in the lower jaw, Kennedy Grade 2.

The patient underwent surgery. Under local anesthesia Sol. Ultracaini D.S. - 1.8 ml., An incision was made in the oral mucosa, the alveolar process of the lower jaw was skeletonized, a bone bed was formed with the help of cutters. 2 bushings made of metal rubber with a decreasing outer diameter in the apical direction were introduced into the formed bone bed; the porosity on each sleeve of metal rubber is heterogeneous and increases in the apical direction. The porosity of the first sleeve is 1 μm., The second sleeve 1 mm. Using a torque wrench, a metal rod is screwed in, having the same diameter in length and metric thread coated with calcium phosphate ceramics. The gum shaper is installed. The wound is sutured. After the implant osseointegration is completed, a tooth prosthesis is installed on the implant.

The positive effect of using the proposed dental implant is expressed in that it provides increased adaptation of the porous part of the implant to the walls of the bone bed, primary stability, provides a sufficient area of contact between the porous part of the dental implant and the bone bed, makes it possible for the porous part of the implant to penetrate into the unevenness of the bone bed apical part.

The proposed model can be used in dental implantology in the departments of maxillofacial surgery and outpatient dental institutions.

INFORMATION SOURCES

1. RF patent No. 129382 dated 06/27/2013, application No. 201300712/14, 01/09/2013.

2. RF patent No. 129802 of 07/10/2013, application No. 2012153494/14, 12.12.2012.

3. RF patent No. 125460 of 03/10/2013, application No. 2012131042/14, 07.20.07.2012

Claims (1)

Dental implant, consisting of an intraosseous porous part made of metal rubber, a metal rod CHARACTERIZED in that it consists of a metal rod having the same diameter in length and a metric thread coated with calcium phosphate ceramic and from 2-4 metal rubber bushings with a decreasing outer diameter in the apical direction; the porosity on each sleeve of metal rubber is heterogeneous and increases in the apical direction from 1 μm. - up to 1 mm.

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