Endodontic Management of Mandibular Lateral Incisor with Talon Cusp: A Case Report

Introduction: Talon cusp is an uncommon developmental anomaly which is characterized by the presence of an extra cusp-like structure projecting from the cingulum area of maxillary or mandibular incisors. It consists of enamel, dentine with or without pulp tissue. Its aetiology is still unknown; however, its formation is attributed by the hyperactivity of the enamel organs during the morpho-differentiation stage.

Case Report: A healthy 15-year-old Malay female came to the paediatric dental clinic with the chief complaint of teeth sensitivity. An intra-oral examination revealed presence of a prominent cusp on the lingual surface as well as a deep fissure on the labial surface of mandibular right lateral incisor with a slight degree of mobility due to periapical abscess. An intraoral periapical radiograph revealed a radiopaque projection. The treatment was a root canal.

Conclusions: This case highlights the endodontic treatment of periapical lesions on the mandibular lateral incisor with talon cusp in an adolescent patient. Diagnosis and management of a rare anomaly are essential in the dental practice.