title: [Maxillary second molar with five root canals: a case report].
abstract: Root canals have a lot of variations in maxillary second molar and most molar have only three root canals. The emergence of 4 root canals in maxillary second molar with two palatal root canals is especially rare. A case of 5 root canals in maxillary second molar with two palatal root canals and two mesiobuccal root canals was successfully treated and reported in this article.
authors.affiliation: Department of Endodontics, School of Stomatology, Tongji University, Shanghai 200072, China. longmarchzhu@hotmail.com
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zhu
authors.forename: Shou-liang
authors.initials: SL
authors.lastname: Zhao
mesh_terms: D003786:Dental Pulp Cavity; D006801:Humans; D008437:Maxilla; D008963:Molar; D014092:Tooth Root