00606naa#a2200193#i#450# EN\\bibl\21536 20240505204613.7 2077-7566 20140625b2014####ek#y0engy0150####ca RU MOUTHGUARDS AS THE MOST EFFECTIVE METHOD OF PREVENTION OF PATHOLOGICAL CONDITIONS OF DENTAL SYSTEM IN ATHLETES Journal article Ekaterinburg TIRAZH Publishing House 2014 4 с. Journal article local Astashina N. B. Kazakov S. V. Ozhgihina E. S. Ozhgihin Y. G. dental-press.ru