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Title: Radix entomolaris in permanent mandibular first molars: Case reports and literature review


Author: Nandanahosur B. Nagaveni, MDS, Kagathur V. Umashankar, MDS

Abstract:This article presents three cases involving permanent mandibular first molars with unusual root morphology. While the permanent mandibular first molar normally has two roots (one mesial and one distal), an additional root sometimes is found distolingually; this condition is known as radix entomolaris (RE). This article also reviews the literature concerning the morphology, prevalence, etiology, classification, diagnosis, and significance of RE.


Received: August 12, 2008
Accepted: October 1, 2008