title: Retreatment of a mandibular second premolar with three roots: a case report.
abstract: Mandibular premolars have earned a reputation for having aberrant anatomy. The occurrence of three canals with three separate foramina in mandibular premolars is very rare. If predictable treatment of a three rooted mandibular premolar is planned, precise knowledge of clinical and radiographic anatomy is absolutely necessary. These teeth may also require special shaping and obturating techniques. This article reports and discusses the treatment recommendations for an unusual occurrence of three canals with three separate foramina in a second mandibular premolar.
authors.affiliation: Department of Endodontics, Dental School, Zahedan University of Medical Science, Zahedan, Iran;
authors.forename: Eshagh Ali
authors.initials: EA
authors.lastname: Saberi
authors.affiliation: Department of Endodontics, Dental School, Ilam University of Medical Science, Ilam, Iran.
authors.forename: Hossein
authors.initials: H
authors.lastname: Rasooli
authors.affiliation: Department of Endodontics, Dental School, Zahedan University of Medical Science, Zahedan, Iran;
authors.forename: Zeinab
authors.initials: Z
authors.lastname: Movassagh
keywords: Anatomic Variation; Endodontic Retreatment; Three Rooted Premolar