DefinePK

Abstract

Introduction


Talon cusp is a rare dental anOmaly that manifests as an accessory cusp like structure in a tooth crown1. The shape of the cusp in this anomaly resembles an eagle’s talon and hence has been given this name2. The cusp involves the lingual cingulum area of the permanent anterior teeth3. It is composed of enamel, dentine and occasionally has a horn of pulp tissue4. The cusp blends smoothly with the tooth, however, there is a developmental groove in the area where the cusp joins the lingual surface of the tooth. This area is susceptible to caries and is the main cause of occlusal interference leading to malocclusion5.
Recently there have been reports that structural anomalies like talon cusp have been observed in primary teeth2,6-9. Mellor and Ripa10 have emphasized the functional and aesthetic problems that this uncommon condition can pose. It is recommended that this condition should be treated prophylactically. Endodontics is necessary in most cases that undergo occlusal accommodation. Various authors have suggested different methods of treatment11,12. The main
etiological factors leading to this type of disorders are craniofacial syndromes. It can also be induced by trauma or other localized insults to the tooth germ13.