Tooth Surfaces Most Frequently Affected by Erosive Tooth Wear

Objectives: To determine the localization of erosive tooth wear lesions in a group of adult patients at the Universidad de los Andes Health Center, in San Bernardo, Metropolitan Region, Chile, 2016.
Methods: A cross-sectional study was conducted. A consecutive sample for patients who receiving dental and/or medical care at Universidad de los Andes Health Center from September 2016 to January 2017 was analyzed. Basic erosive wear examination (BEWE) was performed by two calibrated examiners. Descriptive data analysis by tooth type and tooth surfaces was performed by Stata Software.
Results: A total of 40,434 tooth surfaces from 535 adults was included in this study. Score BEWE 3 was ranged between 1.87% and 22.55% at mandibular premolar surfaces and maxillary incisors surfaces respectively. The frequency of BEWE 3 on the occlusal surfaces of the lower molars was 7.42%. Related with canines, 43.12% and 46.26% of palatal and lingual surfaces was affected respectively. 52.37% of palatal incisor surfaces was affected with BEWE score 3.
Conclusions: The teeth most affected with greater severity of erosive tooth wear lesions were the upper incisors. The most affected surface was the palatal. The less affected teeth were the premolars.