title: Endodontic Treatment of a Maxillary First Premolar with Type IV Buccal Root Canal: A Case Report.
abstract: The maxillary first premolar may present large number of anatomic variations. The clinician should be aware of the configuration of the pulp system. Maxillary first premolars usually have two canals. The incidence of three canals in these teeth is quite rare. This case report presents the diagnosis and clinical management of a maxillary first premolar with two distinct canals in the apical third of buccal root (type IV), drawing particular attention to tactile examination of all the canal walls.
authors.affiliation: Department of Endodontics, Dental School, Islamic Azad University/Member of Iranian Center for Endodontic Research, Tehran, Iran.
authors.forename: Bahareh
authors.initials: B
authors.lastname: Dadresanfar
authors.forename: Zohreh
authors.initials: Z
authors.lastname: Khalilak
authors.forename: Solaleh
authors.initials: S
authors.lastname: Shahmirzadi
keywords: Bicuspid; Maxilla; Root Anatomy; Type IV Canals