title: Prevalence of noncarious cervical lesions and their relation to occlusal aspects: a clinical study.
abstract: OBJECTIVE
  The purpose of this study was to assess noncarious cervical lesions in young patients and to establish a possible relation with occlusal aspects.
  
  
  METHODS
  Forty-eight dental students (28 males; 20 females) between the ages of 16 and 24 years, were investigated to verify the presence of noncarious cervical lesions and their relation to some occlusal aspects. The assessment involved a questionnaire, clinical examinations, and model analysis.
  
  
  RESULTS
  The results indicated that the lower first molars (21.3%), the upper first molars (16.0%), the upper first premolars (12.8%), the lower first premolars (11.7%), and the lower second premolars (11.7%) were the teeth most affected by the lesions. Age was a significant factor with respect to the presence of lesions; the students with noncarious cervical lesions were older than the students who showed no lesions. Among the 79 teeth exhibiting lesions, 62 (78.5%) showed wear facets. In the group with lesions, the mean, per subject, was 15.0 teeth with wear facets, whereas in the group without lesions the mean was 10.8 teeth with wear facets per subject, suggesting that occlusal stress has some effect on lesion development.
authors.affiliation: Department of Prosthodontics, Rio de Janeiro State University, Rio de Janeiro, Brazil. danieltelles@email.com
authors.forename: D
authors.initials: D
authors.lastname: Telles
authors.forename: L F
authors.initials: LF
authors.lastname: Pegoraro
authors.forename: J C
authors.initials: JC
authors.lastname: Pereira
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001641:Bicuspid; D001732:Bite Force; D003769:Dental Occlusion, Traumatic / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D008963:Molar; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires; D014072:Tooth Abrasion / Q000209:etiology*; D019237:Tooth Cervix