December 2008

Volume 25, Issue 4

Loss of sealant retention and subsequent caries development.

Authors: S. Tianviwat V. Chongsuvivatwong B. Sirisakulveroj
doi: 10.1922/CDH_2135Tianviwat05

Abstract

Objectives To assess the transition process of sealant retention and to determine the effect of sealant loss on subsequent caries. Risk design A follow-up study from the day sealants was applied by dental nurses, every six months over a period of 30 months. Setting Mobile dental clinics at primary schools in Songkhla, Thailand. Participants 206 first grade primary school children, with 383 first permanent molars. Outcome measures Intermediate outcomes were: three categories of sealant retention: full retention, partial retention and missing sealant. The final outcome was whether occlusal caries was present or not. Results The percentages of occlusal surfaces of first permanent molars which were at risk (caries free) at time points 6, 12, 18, 24 and 30 months which became carious during the subsequent six months were 2.4, 8.00, 7.4, 5.4 and 6.1 respectively. Caries incidence was highest in the first year after sealing. Odds ratio of conversion from non-caries to caries between partial retention and missing sealant was 3.07 and between full retention and missing sealant, 0.27. Conclusion Under high caries risk and low retention rate settings, partial retention posed a high risk of caries, suggesting an urgent need to improve sealant performance. Key words: Dental caries, dental sealant, first permanent molars, mobile dental clinic, odds ratio, primary school children

£10 single article

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Editorial - The statistical legacy of William Sealy Gosset (“Student”) 194-195 £10 single article
Effect of tooth loss and denture status on oral health-related quality of life of older individuals from Sri Lanka 196-200 £10 single article
The distribution of general dental practitioners with NHS contract numbers in relation to the distance of their practices from the seven dental undergraduate teaching hospitals in England outside London 201-204 £10 single article
Evaluation of oral health-related quality of life questionnaires in a general child population 205-210 £10 single article
Retention and effectiveness of fissure sealants in Kuwaiti school children 211-215 £10 single article
Loss of sealant retention and subsequent caries development. 216-220 £10 single article
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The frequency of periodontal infrabony defects on panoramic radiographs of an adult population seeking dental care 226-230 £10 single article
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Caries prevalence and need for dental care in 13–18-year-olds in the Municipality of Milan, Italy. 237-242 £10 single article
Number of teeth and serum lipid peroxide in 85-year-olds 243-247 £10 single article
Access to dental services for people with a physical disability: a survey of general dental practitioners in Leicestershire, UK 248-252 £10 single article
Short Communication - Risk indicators of dental caries in 5-year-old Brazilian children 253-256 £10 single article

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