Journal of Oral Science Research
An in Vitro Study of 3D Printing Technology in Positioning Calcified Root Canal Orifice of Maxillary First Molar
XUE Yuan, LI Xia
Journal of Oral Science Research . 2021, (9): 814 -819 .  DOI: 10.13701/j.cnki.kqyxyj.2021.09.010