METHOD OF BONE AUTOPLASTY IN ATROPHY AND LIMITED DEFECTS OF MAXILLARY ALVEOLAR PROCESS Russian patent published in 2021 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to surgical dentistry, maxillofacial surgery. That is followed by computed tomography in the area of supposed donor sky area. Alveolar crest apex is incised. Mucocutaneous-periosteal flap is peeled off, using caliper is used to measure width of bone tissue within upper jaw atrophy. Further, the mucoperiosteal flap is detached within the maxillary alveolar process from the palatal surface and bone block 5–7 mm thick is sampled. In area of palatine surface of alveolar process of upper jaw by means of piezo scalpel and a bone bit are used to decode the vestibular jaw surface with the help of a cutter, and osteoperforation is performed in the bone block fixation area. For dense adaptation of the bone block to the prepared recipient bed, the space between the bone block and the receptive segment is filled with osteoplastic material mixed with thrombocyte enriched plasma at ratio of 1:1 to 1:0.5. Bone block is placed from above and rigid fixation is achieved by means of at least 2 micrometers with diameter of not less than 1.2 mm. Width of the reconstructed alveolar portion of the upper jaw is measured. Reconstruction site is closed with a collagen membrane coated with plasma thrombocytes. Mucoperiosteal flap is mobilized by making the periosteum incisions within the greatest thickness of the flap. Comparing the edges of the wound with a turn, the postoperative wound is closed by a combination of nodular and mattress sutures.

EFFECT: method enables reducing operational and postoperative complications, reducing the length of treatment and creating adequate conditions for subsequent implantation.

1 cl, 2 ex