Int J Med Sci 2014; 11(12):1282-1297. doi:10.7150/ijms.10501 This issue


Odontomas and Supernumerary Teeth: Is There a Common Origin?

Roberto Pippi

“Sapienza” University of Rome - Department of Odontostomatological and Maxillo Facial Sciences - Via Caserta 6, 00161 Rome - Italy

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) License. See for full terms and conditions.
Pippi R. Odontomas and Supernumerary Teeth: Is There a Common Origin?. Int J Med Sci 2014; 11(12):1282-1297. doi:10.7150/ijms.10501. Available from

File import instruction


The aim of the present work is to analyze all scientific evidence to verify whether similarities supporting a unified explanation for odontomas and supernumerary teeth exist. A literature search was first conducted for epidemiologic studies indexed by PubMed, to verify their worldwide incidence. The analysis of the literature data shows some interesting similarities between odontomas and supernumerary teeth concerning their topographic distribution and pathologic manifestations. There is also some indication of common genetic and immuno-histochemical factors. Although from a nosological point of view, odontomas and supernumeraries are classified as distinct entities, they seem to be the expression of the same pathologic process, either malformative or hamartomatous.

Keywords: Supernumerary teeth, Odontomas, Odontogenic tumors, Tooth retention.