The Prevalence, Characteristics and Risk Factors in Non-Carious Cervical Lesion: A Survey on 295 People in Guangzhou Area

Non-Carious Cervical Lesion (NCCL) is the loss of hard tooth tissue at the cement-enamel junction not caused by caries and it was categorized in V-shape and saucer-shape according to the shape of the lesion on the plat surface. NCCLs often occurred on the buccal or labial surfaces of the teeth, especially the first premolars [1]. The tendency of distribution of NCCLs which maxillary teeth were more easily affected than mandibular teeth with no significant difference between the right and left sides of the mouth [2]. Studies show the prevalence of NCCL range from 5 to 85% [3], the prevalence and severity of lesions have been found to increase with age [4]. Many causes have been discussed for NCCLs, including tooth-brush damage, acid erosion, teeth attrition and abfraction. In this study, we analyzed the relationship of age, hand preference and bruxism with NCCLs, and for the first time, according to our knowledge, included hard foods in our study.