TY JOUR TI VARIOUS MANIFESTATIONS OF HYPERPLASIA OF PERIODONTAL TISSUES IN CHILDREN KW gingival hyperplasia KW fibromatosis KW gingivectomy JO Actual problems in dentistry AU Stati, T.N. AU Bimbas, E.S. AU Zakirov, T.V. PY 2013 IS 9 PB TIRAZH Publishing House