clinical management of dens invaginatus type 3: a case report

abstract : dens invagination (di) is a developmental abnormality of teeth which frequently results in a complex internal anatomy of the root canal system. di type 3 is an anomaly characterized by infolding of enamel and dentin extending into the root apex. this may present difficulties when forming a diagnosis and treatment plan. many treatment modalities have been presented in case reports for di type 3, but there is insufficient evidence to recommend a therapy. this case report presents the successful non surgical root canal treatment of a maxillary canine with an open apex di type 3, necrotic pulp, and an associated large periradicular lesion.