Absence of Non-Carious Cervical Lesions (NCCLs) in a Chilean Pre-Columbian Sample with Severe Occlusal Tooth Wear

Abstract

URZÚA, I.; CABELLO, R.; RODRÍGUEZ, G.; SÁNCHEZ, J.; FALEIROS, S. & PACHECO, A. Absence of non-carious cervical lesions (NCCLs) in a Chilean pre-Columbian sample with severe occlusal tooth wear. Int. J. Odontostomat., 9(1):59-64, 2015. ABSTRACT: This study evaluates the non-carious cervical lesions (NCCLs) and the occlusal tooth wear in a pre-Columbian sample (n= 67, adults) from San Pedro de Atacama (North of Chile, 400-1300 BCE). The cervical regions of tooth were observed for loss of enamel and/or dentine in order to identify them as NCCLs and the tooth wear was characterized by the Basic Erosive Wear Examination (BEWE) index. None of the individuals analyzed presented NCCLs, whereas the 98.5% (66/67) of them showed occlusal wear. The mean BEWE index was 2.5, indicating severe dental wear (3 being the highest possible score of BEWE). This lack of relation among severe tooth wear and NCCLs gives support to the idea of loss of crown height reduces cervical stress and develop of NCCLs in archaeological populations.