RU87619U1 - DENTAL ABATMENT - Google Patents

Abstract

1. Dental abutment, including the body, a spherical head on the coronary part of the body of the abutment, a seat for mating with an implant, characterized in that the body of the abutment is made elongated, shaped, the presence on the body of the abutment of a second seat for mating with a second implant, the location of the seats at a distance from each other no more than the width of one tooth, the presence of an additional one or two spherical heads on the end of the abutment body. ! 2. The dental abutment according to claim 1, characterized in that the seats for interfacing with the implants are made in the form of a conical support with a hole for the screw.

Description

The utility model relates to the field of dental implantology, namely to the design of the extraosseous part of the implant, and is intended for use in surgical and orthopedic dentistry.

As a rule, an abutment is used as a transitional link between a dental implant and a denture attached to it, for example, a bridge or to install a crown on it.

Known dental abutments, for example, according to the patent of the Russian Federation No. 2334487, publ. 2008.09.27, patent US 5417568, publ. 05/23/1993, patent US 6343939, publ. 02/05/2002, patent RU No. 2199973, publ. 03/10/2003., Which are used to install fixed dentures in the form of crowns and are made, as a rule, with a body in the form of a cylinder or cone, equipped with a thread for screwing into the implant.

The closest technical solution is Alpha Bio Sistem abutments, the so-called abutment attachments made with a cylindrical or conical body, in the coronary part of which there is a spherical head in the form of a ball attachment, and in the lower part there is a seat in the form of a screw for screwing into implant / (www.alpha-bio.ru/eng/download/supplement1.pdf∙430 KB, pp. 39-41).

The disadvantage of this abutment, as well as of all others, is that it is designed to interface with only one implant.

The use of standard abutment does not give a positive result in the case of complete or multiple absence of teeth, accompanied by a sharp atrophy of the jaw bones.

The objective of the utility model is to create such an abutment design that combines two implants into a single implantological support unit, which makes it possible to increase the resistance of implants to load even in loose bone structure characteristic of narrow atrophied jaw bones.

The technical result is the minimization of stresses arising in the bone around the implants, which reduces the risk of bone resorption around them, as well as increasing the functional ability and reliability of removable dentures on the toothless jaws or extensive toothless jaw areas, especially in the presence of severe atrophy of the jaw bones.

The problem is solved thanks to the new design of the abutment, including an elongated body of a figured shape, one spherical head on the coronary part of the body of the abutment and an additional one or two spherical heads on the end part of the body of the abutment, two seats for interfacing with implants in the form of a conical support with a screw hole, located at a distance from each other no more than the width of one tooth.

The novelty of the utility model, including the abutment body, the spherical head on the coronary part of the abutment body, the seat for interfacing with the implant, is confirmed by the presence of the following distinctive features:

- the implementation of the body of the abutment elongated curly shape;

- the presence on the body of the abutment of a second seat for pairing with the implant;

- the implementation of each seat for interfacing with the implant in the form of a conical support with a hole for the screw;

- the location of the seats at a distance of not more than the width of one tooth, which allows you to achieve the optimal level of stress-strain state of the bone tissue surrounding the implants, combined with the help of an abutment into a single implantological support unit;

- the presence on the abutment body of an additional one or two spherical heads located on the end of the abutment body to ensure the best functional ability and reliability of removable dentures.

The proposed design of the abutment allows you to combine two implants located at a distance of not more than the width of one tooth into a single implantological support unit, which improves the quality of life of patients by increasing the stability of the combined implants to early load by reducing the stress-strain state of bone tissue by 20-40% . (Data from Tomohiko Arataki, Yasushi Adachi, Masataka Kishi. 1998).

For cases of complete or multiple absence of teeth, accompanied by sharp atrophy of the jaw bones, for example, in elderly and elderly patients, the most suitable for creating a single implantological unit is the use of the proposed abutment with seats for interfacing with mini-implants with a diameter of up to 3 mm. As a result, it becomes possible to reduce the number of implants implanted in the jaw with extensive defects, for example, with complete or multiple absence of teeth, accompanied by sharp atrophy of the jaw bones.

The utility model is characterized by the following images:

Figure 1. The image of the abutment with a spherical head on the coronary part of the body of the abutment, Figure 2. Image of an abutment with a spherical head on the coronary part of the abutment body and an additional spherical head on the end part of the abutment.

Figure 3. Image of an abutment with a spherical head on the coronary part of the abutment body and two additional spherical heads on the end part of the abutment.

Figure 4. General view of the proposed abutment with a spherical head on the coronary part of the body of the abutment.

The proposed abutment contains an elongated body 1 shaped, a spherical head 2 on the coronary part of the body 1, two seats 3 for pairing with the implant. If necessary, the abutment can be performed with one or two additional spherical heads 2 located on the end part of the body 1 of the abutment.

An example of the use of the proposed utility model in the case of complete absence of teeth of the lower jaw.

Treatment plan:

- integration into the jaw of four implants, with their location in pairs at a distance from each other no more than the width of one tooth;

- the formation of two single implantological support units by pairing each pair of implants with the proposed abutment using screws through the connecting nodes of the implant;

- manufacture and installation of a complete removable prosthesis with fixation on two implantological support units, each of which includes two implants of high-strength nanostructured titanium with developed surface geometry, combined with the proposed abutment using screws.

In cases of complete or multiple absence of teeth, accompanied by a sharp atrophy of the jaw bones, it is preferable to use the proposed abutment with seats for interfacing with mini-implants with a diameter of up to 3 mm.

The proposed design of the abutment due to the combination of two implants into a single implantological support unit makes it possible to increase their resistance to load even in loose bone structure characteristic of narrow atrophied jaw bones. In addition, the proposed abutment allows for the parallel installation of implants in the jaw bones. Another advantage is the solution of the socio-economic problems of the patient by minimizing the number of implants being implanted.

Claims (2)

1. Dental abutment, including the body, a spherical head on the coronary part of the body of the abutment, a seat for mating with an implant, characterized in that the body of the abutment is made elongated, shaped, the presence on the body of the abutment of a second seat for mating with a second implant, the location of the seats at a distance from each other no more than the width of one tooth, the presence of an additional one or two spherical heads on the end of the abutment body. 2. The dental abutment according to claim 1, characterized in that the seats for interfacing with the implants are made in the form of a conical support with a hole for the screw.