Dense-in-dente in mesiodense: Report of a rare duet

Dens invaginatus is a developmental anomaly resulting from invagination of a portion of crown (enamel organ) during odontogenesis. Mesiodens is a supernumerary tooth present in the midline of maxilla between two central incisors. Very few cases of Dens invaginatus have been reported in a mesiodense. Through this article we are presenting a rare case of dens invaginatus occurring in a bulbous mesiodense in a 19 year old boy along with an additional adjacent supernumerary tooth, and a review of literature regarding the same. The patient had presented with complains of unaesthetic appearance. The clinical, radiologic and histologic examination revealed presence of Dens invaginatus Type II. The literature search showed that co-existence of dens invaginatus in a supernumerary tooth is a rare occurrence. As per the available literature, 12 such cases have been reported out of which three have been reported in impacted mesiodens and 3 cases of occurrence of dens invaginatus in mesiodentes.