TY CONF TI NASALMAXILLARY STSTUS EFFECT ON MAXILLARY CANINES IMPACTION IN CHILDHOOD KW maxillary canine impaction KW nasal passage and nasal sinuses KW cone beam computer tomography JO International Congress "dentistry of The great Urals" November 29-December 1, 2017 Youth scientific school on fundamental dentistry AU Bimbas, E.S. AU Sipeeva, M.M. PY 2024 PB TIRAZH Publishing House