Unusual root morphology in second mandibular molar with a radix entomolaris and comparison between cone-beam computed tomography and digital periapical radiography: a case report

摘要

IntroductionRadix entomolaris presents with an unusual morphology and is a rare occurrence. It is mainly observed in mandibular first molars. The incidence varies in different populations but it is far from common. This is especially true for mandibular second molars which possess the lowest prevalence. Some case reports have shown the presence of this finding in mandibular second molars; however, cases of patients of a white background have not been reported.