A Case of Five-Rooted Maxillary Third Molar

Abstract

1. A rare case of five-rooted (two-roots in buccal part, three-roots in lingual part) right maxillary third molar in 75 years old male was reported. 2. This case was caused by division in three parts of lingual root. The buccal root was normal morphologically. 3. The cause of the multi-rooted tooth is attributed not to the phylogenesis but to the division of the tooth germ in the embryonic stage of development.