Unusual Variant of Type 3 Dens Invaginatus in a Maxillary Canine: A Rare Case Report

Combined Endodontic and Surgical Management of a Mandibular Lateral Incisor with a Rare Type of Dens Invaginatus

“…Dens invaginatus occurs most commonly in maxillary teeth, lateral incisors, canines, and less frequently in central incisors (13)(14)(15)(16)(17)(18)(19). When the malformation occurs in maxillary lateral incisors, bilateral appearance is not uncommon (6).…”

“…However, the more recent classification described by Schulze and Brand (12) is more detailed, illustrating a total of 12 different cases of this anomaly. This classification reports 2 variations (A4, B4) in which the invagination starts laterally and near the incisal edge and continues attached to the external outline of the affected tooth mesially or distally.Dens invaginatus occurs most commonly in maxillary teeth, lateral incisors, canines, and less frequently in central incisors (13)(14)(15)(16)(17)(18)(19). When the malformation occurs in maxillary lateral incisors, bilateral appearance is not uncommon (6).…”

A Rare Case of Radicular Dens in Dente diagnosed by Clinical, Radiographic, Tomographic, and Histopathological Examinations

“…In already erupted teeth, the most common manifestations are related to greater predisposition to caries by biofilm accumulation in the area of invagination and consequent ease for damage-associated pulp. 2,5,[9][10][11] Moreover, they can cause occlusal traumas and esthetic effects. 5 In unerupted teeth affected by dens invaginatus, the most common sequelae are related to tooth eruption, as tooth impaction, retention or deviations in the eruption path of neighboring teeth, or occurrence of dentigerous cysts.…”

An Overview of Dens Invaginatus with Report of 2 Cases

“…In some cases, the enamel lining is incomplete. Channels may also exist between the invagination and the pulp [12,13]. Therefore, pulp necrosis often occurs rather early, within a few years of eruption, sometimes even before root end closure [14,15] Other reported sequelae of undiagnosed and untreated coronal invaginations include abscess formation, retention of neighbouring teeth, displacement of teeth, cysts and internal resorption [16].…”