RESUMO
In the present investigation, 60 mandibular second molars from Egyptianpatients were cleared for the study of root canal morphology. The aim was tostudy root canal pattern of such teeth to reveal if there is any specificracial characteristics in Egyptian population. This study concluded that Egyptian mandibular second molars had two separate roots in 96.7%of the teeth examined. Mesial roots were found to have four canal types;namely; type II, type VI, type III and type I in a decreasing order. Distalroots had two canal types in equal percentages, which are type I and type IV. Results of the present study showed that race might have an influence on themorphologic pattern of root canals in permanent dentition. A wider scale ofmorphologic study concerning permanent teeth from Egyptian people isrecommended