Sumer A P, Zengin A Z
Department of Oral Diagnosis and Radiology, Faculty of Dentistry, University of Ondokuz Mayis, Samsun, Turkey.
Br Dent J. 2005 Oct 8;199(7):429-30. doi: 10.1038/sj.bdj.4812741.
The talon cusp is a relatively rare dental developmental anomaly characterised by cusp-like projections, usually observed on the lingual surface of the affected tooth. Normal enamel covers the cusp and fuses with the lingual aspect of the tooth. The cusp may or may not contain an extension of the pulp. This occurs in either maxillary or mandibular anterior teeth in both the primary and permanent dentition. This study reports the unusual case of a 47-year-old female with a taloned tooth on the right maxillary central incisor possessing both lingual and labial talons, with an x-shaped appearance when viewed occlusally.
爪形尖是一种相对罕见的牙齿发育异常,其特征为尖状突起,通常见于患牙的舌面。正常釉质覆盖该尖并与牙齿的舌侧融合。该尖可能含有或不含有牙髓延伸。这种情况发生在乳牙列和恒牙列的上颌或下颌前牙。本研究报告了一例不寻常病例,一名47岁女性右上颌中切牙出现爪形牙,同时具有舌侧和唇侧爪形尖,咬合面观呈x形。