Biological and Clinical Challenges of Tooth Abrasion: Analysis 1,526 Extracted Upper Anterior and Premolar Teeth Used For the Teaching of Oral Biology in University of Benin Dental School

One of the causes of abrasive wear is the use of abrasive tooth pastes and tooth brushes. This may lead to dentin sensitivity if exposed.The aim of this study is to examine 1,526 upper anterior and premolar teeth for evidence of abrasive wear. The segment of teeth were selected because of their preeminence in the smile line.1,526 upper anterior and premolar teeth were examined using key-feature indices of each tooth. Upper central incisors were identified by sharp mesio-incisal angles, upper lateral incisors by rounded disto-incisal angles, upper canines by pointed non-cusp on a bulky crown with prominent cingulium, upper first premolar by double root and bigger buccal cusp and upper second premolar by single rounded root with two equal cusps.Result showed that: Percentage abrasion was more in the canine (10.80%), followed by second premolars (6.028%) and the least the central incisors (0.79%).inConclusion: We conclude that abrasion being inflicted destructive process, preventive health instruction is needed in order to prevent this problem from becoming worse. Strong knowledge of tooth brushes and tooth brushing is recommended for dental practitioners as this will empower them to make evidence based recommendation to their patients and the general public.