TY JOUR TI THE ROLE OF VITAMIN D IN MAINTAINING ORAL HEALTH. LITERATURE REVIEW KW vitamin D level KW periodontal disease KW oral health KW vitamin D deficiency KW vitamin D insufficiency JO Actual problems in dentistry AU Ssablina, S.N. AU Elovicova, T.M. AU Griroriev, S.S. AU Khromtsova, O.M. AU Zakroeva, A.G. AU Yepishova, A.A. AU Karaseva, V.V. AU Mirsaev, T.D. AU Dorokhina, K.R. PY 2021 IS 16 PB TIRAZH Publishing House