METHOD OF URANOPLASTY FOR PERFECTING DEFECTS OF THE HARD PALATE Russian patent published in 2023 - IPC A61B17/00 

FIELD: medicine; reconstructive maxillofacial surgery.

SUBSTANCE: method is intended for use in eliminating congenital malformations, through defects formed after removal of tumor-like formations, as well as traumatic injuries to the hard palate. In the patient's mouth, an impression is taken from the upper jaw using an impression tray and alginate impression material. The resulting alginate impression of the upper jaw is transferred to a dental laboratory, where it is made from Protacryl plastic, which has occlusal impressions on the inner surface that repeat the relief of the dental arch of the upper jaw, and a protective plate with antennae made of stainless steel. Next, under endonasotracheal anesthesia, after aseptic treatment of the surface of the defect in the area of the hard palate, the lines of future incisions are outlined. It is performed by retreating from the defect outward towards the transverse palatal folds to a distance exceeding the width of the defect by at least one and a half times determined by measuring the length of the defect with an indent of 0.5 cm to fix the flap in the receptive bed. Then hydropreparation of the surgical area is performed to detach the palatal mucosa from the bone. Along the previously outlined lines, an arcuate incision is made in the area of the defect on the distal side, after which the mucous membrane is peeled off along with the periosteum to a depth of 0.5 cm, forming a receptive bed. Next, a trapezoidal mucoperiosteal flap is cut out from the opposite side of the defect, with its base facing the defect, after which the flap is mobilized and its edges are de-epithelialized. The mobilized mucoperiosteal flap is turned 180 degrees in the opposite direction and placed in the defect area with the edges screwed into the prepared receptive bed, the edges of the flap and the receptive bed are sutured with U-shaped sutures, a hemostatic sponge impregnated with iodoform, the surgical field and the hemostatic sponge is covered with a plate pre-made from Protacryl plastic with stainless steel antennae, which are fixed to the head cap with a thread.

EFFECT: method allows to minimize the volume of intervention, reduce the number of recurrences of postoperative defects, and create an optimal environment for regeneration in the area of the wound surface.

1 cl, 5 dwg, 2 ex