Talon's Cusp in Fused Permanent Mandibular Incisors



The developmental dental anomaly Talon's cusp was first described by Mitchell in 1892 as a horn like process, curving from the base downward to the cutting edge on the lingual surface of a maxillary central incisor of a female patient. This accessory cusp was named by Mellor and Ripa as Talon's cusp because of its resemblance in shape of eagle’s talon. It occurs more frequently in maxilla than mandible and maxillary anterior region has more prevalence as compared to posterior. 

Talon's Cusp

The permanent dentition is affected more as compared to the primary dentition, and the males being affected more than females. Talon’s cusp of anterior teeth is characterized by the presence of an accessory cusp like structure projecting from cingulum area of cementoenamel junction. Fusion is characterized by union of two or more hard tissues of two or more teeth by their dentin and pulp. The co-occurrence of two developmental dental anomalies is rare. Talon’s cusp in fused permanent mandibular anterior teeth is a rare entity. This case report presents a rare case of fusion in permanent left mandibular incisors with Talon’s cusp.
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