TY JOUR TI ANALYSIS OF COMPLICATIONS OF SURGICAL TREATMENT OF OROANTRAL PERFORATIONS AND FISTULAS KW oroantral message KW maxillary sinusitis KW computed tomography KW perforation KW maxillar sinus JO Actual problems in dentistry AU Alishlalov, S.A. AU Sysolyatin, S.P. AU Shendrikova, S.S. PY 2025 IS 21 PB TIRAZH Publishing House