Endodontic management of developmental anomalies: Conservation of invaginated tissues in type II dens invaginatus – case series

Abstract

Dens invaginatus is an uncommon occurrence in the permanent dentition. However, practitioners must be aware of this anatomical variation, as an early diagnosis may prevent the need for endodontic treatment. Clinically, root canal treatment of Oehler’s Type II dens invaginatus may present a complex challenge. This paper reports two cases of non-surgical endodontic treatment and one case of non-surgical endodontic retreatment of upper lateral incisors diagnosed with Oehler’s Type II dens invaginatus. All procedures were done maintaining the original anatomy of both the invagination and the root canal space to minimize dentin elimination. At follow-up appointments, resolution of apical pathosis was noted in all three cases, with no sign of structural strain. With the help of dedicated instruments, such as ultrasonic tips, and under magnification, the conservation of the invagination in Oehler’s Type II dens invaginatus is a valid and successful treatment option.