OBJECTIVES: To establish the prevalence of @entity2681 in a sample of 12-year-old @entity1 and to monitor changes over the subsequent 2 years. METHODS: A random sample of 1753 @entity1 aged 12 years was drawn from all 62 state maintained schools in Leicestershire. A total of 1308 were re-examined 2 years later. Erosion was recorded on incisors and first molars using an @entity2681 index based upon that from the @entity1 's Dental Health in the United Kingdom 1993 survey. A score was also allocated to each subject according to the most advanced lesion in the mouth. RESULTS: Erosion was present in 56.3% of subjects at age 12 and 64.1% at age 14. Deep enamel or dentine was eroded in 4.9% and 13.1% of subjects, respectively, at the same ages. One hundred and sixty-one (12.3%) @entity1 who were @entity2681 -free at 12 years of age developed @entity2681 over the subsequent 2 years. @entity1 had more @entity2681 than @entity1 , as did white compared to Asian @entity1 . Associations were found between @entity2681 experience and social deprivation. CONCLUSION: New erosive lesions developed in 12.3% of the subjects between the ages of 12 and 14 years. New or more @entity1442 were seen in 27% of the @entity1 over the 2 years of the study. Males, white @entity1 and social deprivation were significantly associated with @entity2681 experience.

The progression of XXXX in a cohort of adolescents of mixed ethnicity.

@entity2681 :: ('MESH:D014077', 'Disease') :: ['tooth erosion', 'erosion'] @entity1 :: ('9606', 'Species') :: ['children', 'Boys', 'Children', 'girls'] @entity1442 :: ('MESH:D020178', 'Disease') :: ['advanced lesions']
@entity2681 :: (MESH:D014077,Disease) :: ['tooth erosion']
