METHOD FOR SETTING ZYGOMATIC IMPLANTS IN TOTAL DEFECTS OF UPPER JAW WITH SUBSEQUENT SETTING OF FIXED DENTAL PROSTHESIS Russian patent published in 2025 - IPC A61B17/00 A61C8/00 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to maxillofacial surgery, orthopaedic and surgical dentistry. Infiltration anaesthesia of the oral mucosa is performed. Intraoral palpation is performed and a zygomatic bone edge is determined. Electrocoagulator is used to dissect the mucous membrane along the muco-gingival border. Tissue dissection is performed in the layer between the oral and nasal cavities, and the zygomatic bone is visualized. Mucoperiosteal flap is detached. Subciliary skin incision is made 2 mm below an eyelash growth line. Skin is separated from the orbicular muscle of eye by 3 mm downwards. Circular muscle of the eye is incised. Anterior surface of the tarso-orbital fascia is visualized below the cartilage plate. Flap is separated along the tarso-orbital fascia to an infraorbital edge. Fascia of an eye socket is dissected. Periosteum of the orbit is dissected. Zygomatic bone is visualized from the oral cavity and from the side of the subciliary incision. Zygomatic implant bed is prepared with a pilot cutter at frequency of 1200 rpm and torque of 20 Nm. Vestibulo-oral and mesio-distal directions are determined. Zygomatic implant is projected onto the zygomatic skin from an incision in the oral cavity to an outer edge of the zygomatic bone. Bicortical implantation of the distal implant is performed below the zygomatico-alveolar crest with torque of 20 Nm with successive use of cutters. Bicortical mesial implant is placed 5 mm downwards from a lower edge of the eye socket with torque of 20 Nm with successive use of cutters. Parallelism of zygomatic implants is assessed. Permanent irrigation is performed. Multi-units are placed on both zygomatic implants at angle of 50°. Oral wounds are closed. Skin is closed by an intradermal suture, followed by a fixed dental prosthesis.

EFFECT: method enables visual control of the zygomatic implants in the restoration of total defects of the upper jaw, which in the remote postoperative period solves the problem of implant eruption, loss of chewing load and injuries of tissues of the middle third of the face.

1 cl, 1 ex