00771naa#a2200205#i#450# EN\\bibl\4015 20220815122635.1 20200218b2020####ek#y0engy0150####ca RU COMPARATIVE EVALUATION OF THE EFFECTIVENESS OF THE APPLICATION OF DIAMOND BUR, ULTRASONIC TIP START-X AND ENDODONTIC BURS MANS TO RETRIEVE THE FIBERGLASS PIN Conference article/thesis Ekaterinburg TIRAZH Publishing House 2020 2 с. Conference article/thesis local Медицина. Охрана здоровья. 61 Griroriev Sergey Sergeevich Basargina A. D. Eremina A. L. Panfilov P. E. Sorokoumova Dina Viktorovna dental-press.ru