TY JOUR TI STUDY OF THE TOXIC PROPERTIES OF NAIVOTNYH NEW DENTAL MATERIAL BASED ON OXIDE ALUMINA KW ceramics KW oxide alumina KW salivary gland KW toxicity JO Actual problems in dentistry AU Zholudev, D.S. AU Berdnikov, R.B. AU Griroriev, S.S. PY 2014 IS 10 PB TIRAZH Publishing House