作者: Bing Fan , Yi Min , Guanfan Lu , Jun Yang , Gary S.P. Cheung
DOI: 10.1016/J.JOEN.2009.04.011
关键词:
摘要: … mandibular second molars, especially in Asian populations, although it can also occur in maxillary and other mandibular … The morphological changes in the root canal shape before and …