Two symmetrical maxillary first molars with two disto-buccal root canals.
This article describes the diagnosis and treatment of two symmetrical maxillary first molars with two canals in their distobuccal roots. A 32-year-old female had an emergency treatment because of the pain in tooth #16. On the second visit after accessing the pulp chamber and detecting three major canals (MB, DB, and P) and exploring the 4th canal (MB2), we noted that there was a 5(th) canal in the distobuccal root. Also, necrosis was found in the same patient after examining the tooth #26 which was severely decayed. Then after preparing the access cavity, the same order of orifices was found in tooth #16. An electronic apex locator was utilized to ensure that a perforation of the pulpal floor had not occurred. Working films confirmed the presence of an additional canal in distobuccal root.
Department of Endodontics, Dental Research Center, Faculty of Dentistry, Mashad University of Medical Sciences, Mashad, Iran.
Jamileh
J
Ghoddusi
Department of Endodontics, Faculty of Dentistry, Mashad University of Medical Sciences, Mashad, Iran.
Maryam
M
Javidi
Department of Endodontics, Faculty of Dentistry, Mashad University of Medical Sciences, Mashad, Iran.
Mahdi
M
Vatanpour
First Molar; Five Root Canals; Maxillary; Two Disto-Buccal