OBJECTIVES: To determine the proportion of non-carious @entity75 (NCCL) that were either @entity12893 like and to test the validity of the assumption that right-handed @entity1 cause more abrasion on the cervical surfaces of teeth on the left side of the mouth. SETTING: Ile-lfe, Southwestern Nigeria. @entity1 : 106 first time @entity1 diagnosed as having any form of NCCL. DESIGN: @entity1 were subjected to intra-oral examination followed by the administration of a questionnaire. The @entity75 were examined and scored using the tooth wear index designed by Smith _ Knight 1984. NCCL was diagnosed as @entity12893 like based on established clinical features plus positive history of possible associated aetiological factors. OUTCOME MEASURES: Abrasion and @entity75 . RESULTS: Abrasion was the diagnosis in 630 (62.3%) of the 1,012 tooth sites with NCCL that had no associated occlusal surface wear facet. This constituted about two-thirds of the NCCL. Three hundred and eighty two (37.7%) of the NCCL occurred in association with an occlusal surface wear facet and presented the typical wedge shaped defects with sharp margins characteristic of abfraction. These @entity75 constituted about one-third of the NCCL. 50.8% of abrasive NCCL in right-handed brushers were located on the left side of the mouth. CONCLUSIONS: About one-third of NCCL in the present study presents an abfraction component, and two-thirds abrasion. Although, right-handed brushers had more severe lesions on the opposite side of the mouth, the difference was not statistically significant.

Non-carious @entity75 in a Nigerian population: XXXX ?

@entity75 :: ('MESH:D001927', 'Disease') :: ['cervical lesions', 'abfraction like lesions'] @entity1 :: ('9606', 'Species') :: ['Patients', 'patients', 'PARTICIPANTS'] @entity12893 :: ('MESH:D014072', 'Disease') :: ['abrasion or abfraction']
@entity12893 :: (MESH:D014072,Disease) :: ['abrasion or abfraction']
