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Pattern of dental caries experience on tooth surfaces in an adult population.

Hopcraft MS, Morgan MV

School of Dental Science, The University of Melbourne, Melbourne, Australia. m.hopcraft@unimelb.edu.au

OBJECTIVES: To determine the pattern of caries experience across teeth and surfaces in an adult population depending on age and exposure to water fluoridation. METHODS: Between November 2002 and March 2003 a total of 973 subjects aged 17-51 years had a clinical examination using visual and tactile criteria. Subsequent to this examination, bitewing radiographs were taken and viewed separately. Approximal and occlusal surfaces of molars and premolars were examined on the radiographs. RESULTS: Caries experience was relatively low, with mean DMFS scores of 3.21, 5.12, 9.61, 13.04 and 24.35 for subjects aged 17-20, 21-25, 26-30, 31-35 and 36-51 years respectively. The first molar teeth had the greatest caries experience, and occlusal surfaces had more caries experience than approximal surfaces. Subjects with a lifetime exposure to fluoridated drinking water had significantly lower caries experience than those who had no exposure to fluoridated drinking water. CONCLUSION: This study showed that caries prevalence, although relatively low in the study population, was found predominantly in occlusal surfaces, with an increasing prevalence in approximal surfaces of posterior teeth in older subjects. Subjects with a lifetime exposure to fluoridated drinking water had a lower level of caries experience than those with no exposure to fluoridated drinking water, and this was more noticeable in approximal surfaces than occlusal surfaces.

Published 5 May 2006 in Community Dent Oral Epidemiol, 34(3): 174-83.
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