00597naa#a2200193#i#450# EN\\bibl\21777 20240426125708.5 2077-7566 20150225b2015####ek#y0engy0150####ca RU COMPARATIVE CHARACTERISTICS OF TEETH HARD TISSUES WITH DIFFERENT WAYS OF PREPARATION Journal article Ekaterinburg TIRAZH Publishing House 2015 2 с. Journal article local Chechun Natalia V. Bondarenko O. V. Sysoeva O. V. Tokmakova Svetlana Ivanovna dental-press.ru