TY JOUR TI APPLIANCES FOR MAXILLARY EXPANSION IN ORTHODONTIC PRACTICE: A RETROSPECTIVE ANALYSIS OF STUDIES KW transverse maxillary constriction anomaly KW maxillary expansion KW removable expansion plates KW fixed palatal expanders KW bone-borne appliances KW Haas appliance KW digital 3D technologies in orthodontics JO Actual problems in dentistry AU Podoplelov, D.S. AU Egorova, M.V. AU Dogaru, A.M. AU Heigetyan, A.V. AU Karammaeva, M.R. AU Kharagezova, T.R. AU Bakieva, F.I. PY 2026 IS 22 PB TIRAZH Publishing House