TY JOUR TI STUDY OF THE ANATOMY OF THE MENTAL FORAMEN USING CONE-BEAM COMPUTER TOMOGRAPHY KW optical density KW densitometry KW mandible KW cone-beam computed tomography KW mental foramen JO Actual problems in dentistry AU Shelegova, I.G. AU Heigetyan, A.V. AU Vazhenina, D.A. AU Nurieva, N.S. PY 2020 IS 16 PB TIRAZH Publishing House