RU128098U1 - DEVICE FOR DIRECTED BONE TISSUE REGENERATION - Google Patents

Abstract

A device for targeted regeneration of bone tissue, consisting of a membrane in the form of a mesh plate of braided filaments, characterized in that the mesh plate consisting of titanium wire filaments with a diameter of 0.1-1.5 mm, coated with calcium phosphate ceramic, has an opening corresponding to the size the cervical part of the tooth, around the hole there is a titanium wire fiber with a diameter of 0.5-2 mm with two free ends, for fixing in the mesh plate there are 2 U-shaped wire staples with a thickness of 0.2-2 mm.

Description

The utility model relates to medicine, namely to dentistry and maxillofacial surgery.

A device for the directed regeneration of bone tissue, consisting of a mesh metal membrane, with a cellulose-acetate filter filled with autologous bone chips [1].

The disadvantage of this device is the inadequate adaptation of the membrane to bone tissue and mucosal-periosteal flaps, the tension of the tissue flap, with cutting through the membrane.

A device for the directed regeneration of bone tissue, consisting of a membrane reinforced with titanium [2].

The disadvantage of this device is the inadequate adaptation of the membrane to bone tissue and mucoperiosteal flaps, cervical parts of the tooth, tension of the flap tissue, with cutting through the membrane.

Known porous nickelide titanium membrane for directed tissue regeneration made in the form of a porous plate with a thickness of 0.3 mm, curved in the shape of the crest of the alveolar ridge, porosity of 50-80%, with a pore size of up to 350 microns. [3].

The disadvantage of this device is the incomplete adaptation of the membrane to bone tissue and mucoperiosteal flaps, the tension of the flap tissues with a penetrating membrane, the low biological compatibility of titanium nickelide, unpredictable resorption of tissues of the alveolar parts and jaw processes due to the pressure of the metal with shape memory.

Known used for targeted bone regeneration, synthetic non-resorbable (Gore - Tech Ti, Gore - Tech), synthetic resorbable (Vicril, Guidor, Resolut, Atrisorb, Osseoquest) natural resorbable (Bio-Gide, Biomend, Alloderm) membranes [4].

The disadvantage of these devices is the defective adaptation of the membrane to bone tissue and mucoperiosteal flaps, the risk of a violation of the integrity of the suture line, as well as the tension of the flap tissue and its damage by the edges of the membrane.

Known woven nickelide titanium membrane with shape memory for guided tissue regeneration in the form of a mesh plate consisting of superelastic filaments braided by textile technology from TN-10 alloy with a diameter of 50-60 microns with a distance between adjacent threads of 100-200 microns, the plate is curved in the shape of an alveolar ridge process and retains a given shape due to the memory effect [5].

The disadvantage of this device is the inadequate adaptation of the membrane to bone tissue and mucoperiosteal flaps, the tension of the flap tissue with a penetrating membrane, the low biocompatibility of titanium nickelide, unpredictable tissue resorption of the alveolar parts and jaw processes due to the pressure of the metal with shape memory.

This device is taken as a prototype.

The purpose of creating a useful model is to increase the adaptation of the membrane to bone tissue and mucoperiosteal flaps and cervical parts of the tooth, reduce the risk of tissue tension of the flap and damage to the edges of the membrane, increase biocompatibility, decrease bone resorption, expand indications for directed bone tissue regeneration, stabilization osteoplastic material.

This goal is achieved by the fact that a mesh plate consisting of titanium wire filaments with a diameter of 0.1-1.5 mm., Coated with calcium - phosphate ceramics, has a hole corresponding to the size of the cervical part of the tooth, around the hole there is a titanium wire fiber with a diameter of 0.5-2 with two free ends, for fixing to the bone in the mesh plate there are 2 U-shaped wire staples with a thickness of 0.2-2 mm.

A useful device is illustrated in graphic material. The figure 1 shows a mesh plate (1) having a hole (2) corresponding to the size of the cervical part of the tooth, around the hole there is a titanium wire fiber (3) with a diameter of 0.5-2 mm. with two free ends (4), for fixing to the bone in the mesh plate there are 2 U-shaped wire staples (5) with a thickness of 0.2-2 mm.

Photo 1 shows a mesh plate used in the proposed device for the directed regeneration of bone tissue.

The use of the new device is confirmed by a clinical example. Patient S., 38 years old. Diagnosis - Chronic focal periodontitis of severe severity, three-walled bone defect, expressed degree of bone atrophy in the tooth region 3.5. The patient underwent surgery. Under local anesthesia Sol. Ultracaini D.S. - 1.8 ml., An incision was made in the mucous membrane, peeling and folding of the mucoperiosteal flaps was made, and the roots of the teeth were treated and polished. Bone defects are filled with osteotropic material Bio-Oss. A synthetic non-resorbable Gore membrane was installed - Tech, a device for directional bone tissue regeneration, modeled in accordance with the individual size of the receiving bed, was laid over the membrane, with the projection of the device’s opening and the crown of the tooth coinciding, the mesh plate of the device was adapted to the cervical part of the tooth and bone tissue the free ends of the titanium wire around the cervical part of the tooth. Titanium wire fiber is fixed by a knot. The mesh plate of the device is fixed by two U-shaped wire staples with adaptation in the shape of the alveolar part with the direction of the ends of the staples to the base of the jaw. The reposition of the flaps was made. Stitched. After 5 weeks, the membrane and the device for the directed regeneration of bone tissue were removed.

After 3 months, bone defects were restored, the condition of periodontal tissues was stable. A full adaptation of the membrane to bone tissue and mucoperiosteal flaps and cervical parts of the tooth was achieved, the risk of tension of the flap tissue and the risk of damage by the edges of the membrane were reduced, the biological compatibility was increased, the bone resorption was reduced, the indications for directed bone tissue regeneration were expanded, the bone-plastic was stabilized material.

A positive effect from the use of the proposed device is expressed in that it allows you to increase the adaptation of the membrane to bone tissue and mucoperiosteal flaps, cervical parts of the tooth, reduces the risk of tension of the flap tissue and damage to the edges of the membrane, expands indications for directed regeneration of bone tissue, stabilizes bone -plastic materials, allows to achieve high cosmetic and functional results.

The proposed device can be used in departments of maxillofacial surgery and outpatient dental institutions.

INFORMATION SOURCES

1. Pankratov A.S., Lekishvili M.V., Kopetskiy I.S. Bone grafting in dentistry and maxillofacial surgery. Osteoplastic Materials: A Guide for Physicians / Ed. A.S. Pankratova. - M .: Publishing house BINOM, 2011. - p. 181.

2. Robustova T.G. Dental implantation (surgical aspects). - M .: Medicine, 2003 .-- p.36.

3. RF patent for utility model No. 2011125505/15 dated 06/21/2011.

4. Herbert F. Wolff, Edith M. Rateitzzhak, Klaus Rateyzhak. Periodontology / Ed. prof. G.M.Barera. - M .: MEDpress-inform, 2008 .-- 548 p. 354.

5. RF patent for utility model, application No. 20112100399/14 dated 01/10/2012

Claims (1)

A device for targeted regeneration of bone tissue, consisting of a membrane in the form of a mesh plate of braided filaments, characterized in that the mesh plate consisting of titanium wire filaments with a diameter of 0.1-1.5 mm, coated with calcium phosphate ceramic, has an opening corresponding to the size the cervical part of the tooth, around the hole there is a titanium wire fiber with a diameter of 0.5-2 mm with two free ends, for fixing in the mesh plate there are 2 U-shaped wire staples with a thickness of 0.2-2 mm.

Images