RU-2861633-C1 - METHOD FOR ALVEOLAR BONE AUGMENTATION WITH GRAFT COMPRISING DENTAL AUTOTISSUE

RU2861633C1RU 2861633 C1RU2861633 C1RU 2861633C1RU-2861633-C1

Abstract

FIELD: medicine. SUBSTANCE: invention relates to surgical dentistry, and can be used to increase the volume of alveolar bone during dental implantation and sinus lift or other defects of the alveolar bone. The tooth is extracted from the socket of the alveolar bone, curettage of the socket of the extracted tooth is performed. The extracted tooth is mechanically cleaned and treated with a sterile physiological saline solution. Then, using a mill, the extracted tooth is crushed to obtain particles of 500-1000 mcm in size. After crushing, the obtained material is heated to 33-36°C for 10-15 minutes and a xenogeneic material with a particle size of 2000-2500 mcm is added in a ratio of 70:30, respectively. Then the obtained material is sterilised for 15 minutes and, by tamping, the alveolar bone defect is filled with the graft. EFFECT: method, by using a plastic, viscous osteoplastic material that imparts framework properties to the graft in the defect, makes it possible to eliminate postoperative complications, provides an osteoconductive effect and reduces the time of the regeneration process. 1 cl, 4 dwg, 2 ex

Inventors

Amkhadova Malkan Abdrashidovna
Mityushin Artem Anatolevich
Gergieva Tamara Feliksovna
Akhmadov Islam Sultanovich
Abdurakhmanova Mesedo Shekhakhmedovna
Dzhabrailova Maryam Abuevna

Dates

Publication Date: 20260506
Application Date: 20250724

Claims (1)

A method for alveolar bone plastic surgery using a transplant comprising autogenous dental tissues, characterized by the following steps: extracting a tooth from the alveolar bone socket, curettage of the socket of the extracted tooth, mechanically cleaning the extracted tooth and treating it with a sterile physiological saline solution, then using a mill grinding the extracted tooth and obtaining particles of 500-1000 μm in size, after grinding the resulting material is heated to 33-36°C for 10-15 minutes and adding xenogenic material with a particle size of 2000-2500 μm in a ratio of 70:30, respectively, then sterilizing the resulting material for 15 minutes and, by compacting, filling the alveolar bone defect with the transplant.

Description

The invention relates to the field of medicine, namely to surgical dentistry, and can be used to increase the volume of alveolar bone during dental implantation and sinus lifting or other defects of the alveolar bone. Restoring lost bone volume in alveolar bone defects remains a pressing issue today. Developing an effective method for alveolar bone grafting is key to restoring and maintaining the size of hard and soft tissues. The choice of bone grafting materials depends on the volume and nature of the lost bone. The choice of graft material and its properties can also influence the results. In recent years, there has been growing interest in dental material as a valuable alternative to synthetic biomaterials. A known method for augmenting the alveolar ridge of the jaw involves an incision along the apex of the alveolar ridge in the area of the planned bone grafting. A mucoperiosteal flap is raised. The tooth is extracted. The socket is examined. An autogenous dentin block (ADB) is formed from the extracted tooth, matching the shape and size of the bone defect to be replaced. Through-and-through perforations are made over the entire area in a staggered pattern. The fabricated ADB is placed in a 2% chlorhexidine solution for 15 minutes. The receptacle is perforated, and a bevel is formed around its perimeter at an obtuse angle of 145-120°, congruent with the previously formed bevel of the ADB. After antiseptic treatment, the resulting material is placed in the defect area and secured with two mini-screws. Next, the mucoperiosteal flap is placed in place and fixed with synthetic braided suture material (RU Patent 2804989, IPC A61B 17/24, published 2023). The disadvantage of this method is that the resulting autogenous dentin block has a dense, fragmented shape, which cannot be used for sinus lifting, nor does it allow for the complete filling of large, hard-to-reach cystic defects, nor for filling slit-like defects and the biological width space during single-stage dental implantation, which increases the regeneration time. Material preparation is lengthy, as this method requires the removal of hard dental tissues such as enamel and cementum. A known method of alveolar bone grafting using a tooth as a transplant material (Toothasgraftmaterial: Histologicstudy. Elio Minetti, Stefano Corbella, Silvio Taschieri, Luigi Canullo. https://air.unimi.it/retrieve/8f2fcd94-14b4-491c-8a79-8593285fe5b9/Clin%20Implant%20Dent%20Rel%20Res%20-%202022%20-20Minetti%20-%20Tooth%20as%20graft%20material%20Histologic%20study.pdf) includes extracting a tooth from the alveolar bone socket, cleaning it from residual calculus, carrying out antiseptic treatment by abundant irrigation with saline solution, cutting the tooth into small pieces, and then crushing the fragments in a mill. The resulting material is placed into the recipient's alveolar bone defect. The disadvantage of this method is that the resulting dental material has a very liquid, non-plastic consistency. This is extremely inconvenient to work with (it's difficult to insert into the defect), and it's also very unphysiological in bone defects and sinus lifts—it spreads excessively and doesn't hold its shape. A known method of bone grafting during dental implantation involves gentle extraction of the tooth or root(s). The socket of the newly extracted tooth is thoroughly curettaged, removing all pathologically altered tissue. The bone wound is then treated with an antiseptic, such as chlorhexidine digluconate solution. The newly extracted tooth is mechanically cleaned, then rinsed with sterile saline solution and dried with an air syringe. The tooth is then ground using a tooth mill for approximately 20 seconds. This time is sufficient to obtain particles sized 300–1000 µm. Particles smaller than 300 µm are discarded. The resulting material, in the form of particles of the specified size, is sterilized with 0.5 M NaOH with 30% alcohol for 15 minutes in a glass container, removing organic debris, bacteria, and toxins. The sterilized particles are dried using an air syringe. To complete the graft conditioning process, the crushed tooth is placed in a sodium phosphate buffer solution for 5 minutes. The entire volume of the prepared socket, as well as any defects in the bone wall, is filled with the crushed tooth graft and tightly compacted (RU Patent 2719655, IPC A61 B 17/00, published 2020, prototype). The disadvantage of this method is that the crushed tooth used is a homogeneous mass that does not provide the necessary plasticity. This makes it extremely inconvenient to work with (it is difficult to insert into the defect). It is also very unphysiological in bone defects and sinus lifts—it spreads excessively and does not hold its shape. The regeneration process takes longer because vessel ingrowth is more difficult. The objective of the proposed invention is to eliminate the above-mentioned disadvantages, create an effective method for augmenting bone defects of the alveo