METHOD OF DENTAL IMPLANTATION ON LOWER JAW IN ATROPHY OF ALVEOLAR PROCESS Russian patent published in 2021 - IPC A61B17/24 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to surgical dentistry. Mucous membrane is incised to bone along alveolar ridge. Vestibular and oral mucoperiosteal flaps are peeled off. Mucous-periosteal flaps with periosteum are mobilized using a scalpel. Vertical osteotomy is performed in the center of alveolar ridge down to 6 to 12 mm. That is followed by two vertical incisions in osteotomy of cortical and spongy layers with length of 6-12 mm from top to bottom along the edges of the first incision. Vertical saw cuts in osteotomy are performed to ensure divergence of their lower edges at a distance greater by 2-4 mm than distance between upper edges of vertical cuts in osteotomy. At the level of the lower edges of the vertical saw cuts, the horizontal propeller of the cortical and spongy layers is made at depth of 4 to 6 mm and a free cortical-spongy bone block of trapezoidal shape is separated. Free cortical-spongy bone block of trapezoidal shape is unfolded for 180° bottom wide edge upwards to form apex of alveolar ridge. Drill is drilled through 2 to 4 through holes with diameter of 0.9-1.2 mm through created cortical-spongy bone block and oral cortical plate. Created free cortical-spongy bone block is fixed to an oral cortical plate using 2 to 4 micro-screws through the made holes. Dental implant bed is formed and a dental implant is placed 1-3 mm below the formed alveolar ridge. Space between the free cortical-spongy bone block and the lingual cortical plate is filled with osteoplastic material. Wound is closed at first with internal mattress sutures of resorbable suture material for peristotomy of oral and vestibular flaps and pressing of periosteum to a bone of the lower jaw. Further, the wound is closed with two-row nodal monofilament non-resorbable sutures.

EFFECT: method enables providing an increase in the size of the alveolar process accompanying its atrophy, preventing the bone fragment displacement, improving the adhesion of the bone fragment with its own alveolar bone, restore microcirculation and prevent bone resorption, perform reliable dental implantation simultaneously with anatomical restoration of the reconstructed area, reduce length of treatment and improve patient's quality of life.

1 cl, 3 ex