RESUMEN
The aims of the present study were to determine the prevalence of dental abfraction among a sample of adult Sudanese patients and to investigate the possible association between abfraction and different etiological factors. The diagnosis of abfraction included both clinical examination and laboratory work. All attended patients were examined for presence of cervical lesion. Complete clinical history was obtained from the examined cases by using self report questionnaire. Impression was taken for cases with suspected abfraction by using additional silicon impression material; a study cast was evaluated for every case. Analysis of the study was conducted by applying an inlay wax over the lesion to produce wax pattern. The wax pattern was evaluated; any pattern that had a wedge shape was considered as an abfraction lesion. Prevalence of dental abfraction was found to be about 9.4%. Males and females were equally affected, mandibular and maxillary premolars are the most frequently affected teeth. There was a direct correlation between abfraction and parafunctional habits.