The Incidence of Two Root Canals in the Mesial Root of the Extracted Permanent Maxillary First Molars Among a Sulaimani-Iraq Population (Ex Vivo Study)

Abstract

The aim of this study was to assess the incidence of two root canals in the mesial root of the extracted permanent maxillary first molars of a Sulaimani population. An ex vivo study on 180 extracted permanent maxillary first molars was conducted. The teeth were examined clinically and radiographically. The results showed that 23.3 % of the examined teeth had two canals in the mesial root (17.0 % with one apical foramen and 6.3 % with two separate foramens)