Oral health status of children aged 3-12 years in Trang province: comparing before, during and after fluoridated milk project in 2014, 2017 and 2020
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Abstract
The aim of this cross-sectional study is to compare the oral health status of children in Trang province in 3 phases: before the fluoridated milk project started (January-February 2014), during the project (2017), and after the fluoridated milk project (2020). The target population consisted of children aged 3, 6, 9, and 12 from all districts in Trang province. The research instrument, survey form and methodology were based on the guidelines of the bureau of dental health. The examiners were two dentists from Trang provincial public health office, who were standardized and calibrated (Kappa score > 0.80). The data was collected using software created by the bureau of dental health. Then analyzed by descriptive and inferential statistics: percentage, means and deviation, and compared by mean difference (95% CI) and chi-square. The results showed that caries prevalence, dmft, and dmfs of the 3- and 6-year-old groups decreased. Moreover, caries prevalence, DMFT, and DMFS of the 9-year-old group were decreased as well: caries prevalence was decreased from 51.7% to 40.1% and 30.9%, while DMFT was decreased from 1.1 to 0.9 and 0.5. However, the caries prevalence of the 12-year-old group increased in 2017 and then decreased in 2020, DMFT decreased from 1.9 to 1.8 and 1.0. The data of oral health status among children in Trang needs periodically collected for planning and evaluation.
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