Maxillary second molar with two palatal root canals: a case report / 华西口腔医学杂志

The main type of four root canals in maxillary second molar is two-mesiobuccal. Incidence rate of maxillary second molar with two palatal root canals is especially rare. A case of maxillary second molar with two palatal root canals was reported in this article.