活髓牙经镍钛机动与手用器械根管预备后疼痛发生比较

黄轶锋, 杜嵘, 洪瑾

Comparison of postoperative pain after vital pulp root canal preparation with nickel-titanium rotary instrument and hand-used instrument

HUANG Yi-feng, DU Rong, HONG Jin

. 2010, (3): 333 .