Table of Contents
Journal of Oral Diseases
Volume 2014 (2014), Article ID 595189, 6 pages
http://dx.doi.org/10.1155/2014/595189
Clinical Study

Talon Cusp: A Prevalence Study of Its Types in Permanent Dentition and Report of a Rare Case of Its Association with Fusion in Mandibular Incisor

1Department of Oral Medicine and Radiology, S.R. Dental College, Faridabad, Haryana 121002, India
2Department of Oral Medicine and Radiology, PDM Dental College, Bahadurgarh, Haryana 124507, India

Received 19 June 2013; Revised 19 November 2013; Accepted 10 December 2013; Published 21 January 2014

Academic Editor: Yasutaka Kubota

Copyright © 2014 Gaurav Sharma and Archna Nagpal. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose. The data on various types of talon cusp, a rare developmental anomaly that occurs predominantly on palatal surfaces of maxillary incisors with varied prevalence in different populations, is scarce. Thus, the purpose of study was to evaluate prevalence of various types of talon cusp and its association with sex predilection, site, and other dental anomalies and complications. Subjects and Methods. A cross-sectional prevalence study for various types of talon cusp was conducted in 5200 patients selected randomly. Hattab’s classification criterion was used for diagnosis of types of talon cusp. The clinical diagnosis was confirmed with radiograph. Results. The prevalence of talon cusp was found to be 0.02% (1 in 430 cases). 12 cases of talon cusp in 10 patients (60% males) were documented (2 bilateral cases and 8 unilateral). Type I talon cusp and type II talon cusp were present in five cases each (40.1%) and type III talon cusp was observed in two (16.2%) cases. Conclusion. Type I talon cusp and type II talon cusp were the most common types and permanent maxillary central incisor was the most commonly involved tooth (50%). An extremely rare case of talon cusp on a fused permanent mandibular incisor is also reported.