The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas

Objective: To determine the prevalence and severity of dental caries (at dentine and enamel levels of diagnosis) amongst Malaysian children and to investigate determinant factors associated with caries detection at these different thresholds. Methods: This study involved life-long residents aged 12...

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Main Authors: Mohd Nor, Nor Azlida, Chadwick, Barbara Lesley, Farnell, Damian J.J., Chestnutt, Ivor Gordon
Format: Article
Published: Dennis Barber 2019
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Online Access:http://eprints.um.edu.my/23815/
https://www.cdhjournal.org/issues/36-3-september-2019/985-the-prevalence-of-enamel-and-dentine-caries-lesions-and-their-determinant-factors-among-children-living-in-fluoridated-and-non-fluoridated-areas
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spelling my.um.eprints.238152021-04-28T01:56:15Z http://eprints.um.edu.my/23815/ The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas Mohd Nor, Nor Azlida Chadwick, Barbara Lesley Farnell, Damian J.J. Chestnutt, Ivor Gordon RK Dentistry Objective: To determine the prevalence and severity of dental caries (at dentine and enamel levels of diagnosis) amongst Malaysian children and to investigate determinant factors associated with caries detection at these different thresholds. Methods: This study involved life-long residents aged 12 years-old in fluoridated and non-fluoridated areas in Malaysia (n=595). The survey was carried out in 16 public schools by a calibrated examiner, using ICDAS-II criteria. A questionnaire on socio-demographic and oral hygiene practices was self-administered by parents/guardians. Data were analysed using Mann-Whitney U tests and logistic regression. Results: The overall response rate was 74.4%. Caries prevalence at the dentine level or at the dentine and enamel level was significantly (p<0.001) higher among children in the non-fluoridated area (D1-6 MFT>0 = 82.4%, D4-6 MFT>0 = 53.5%) than in the fluoridated area (D1-6 MFT>0 = 68.7%, D4-6 MFT>0 = 25.5%). Considering only the decayed component of the index, no significant differences were observed between the two areas when the detection threshold was set at enamel caries (D1-3) (p=0.506). However, when the detection criteria were elevated to the level of caries into dentine (D4-6) there were clear differences between the fluoridated and non-fluoridated areas (p=0.006). Exposure to fluoridated water proved a significant predictor for lower caries prevalence in the statistical model. Children whose father and mother had a low monthly income had a significantly higher dentine caries prevalence. Conclusion: Results confirmed existing evidence of the benefit of water fluoridation in caries prevention. Detection criteria set at caries into dentine shows clear differences between fluoridated and non-fluoridated areas. Exposure to fluoridated water and socio-economic status were associated with caries prevalence. © BASCD 2019. Dennis Barber 2019 Article PeerReviewed Mohd Nor, Nor Azlida and Chadwick, Barbara Lesley and Farnell, Damian J.J. and Chestnutt, Ivor Gordon (2019) The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas. Community Dental Health, 36 (3). pp. 229-236. ISSN 0265-539X https://www.cdhjournal.org/issues/36-3-september-2019/985-the-prevalence-of-enamel-and-dentine-caries-lesions-and-their-determinant-factors-among-children-living-in-fluoridated-and-non-fluoridated-areas
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic RK Dentistry
spellingShingle RK Dentistry
Mohd Nor, Nor Azlida
Chadwick, Barbara Lesley
Farnell, Damian J.J.
Chestnutt, Ivor Gordon
The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas
description Objective: To determine the prevalence and severity of dental caries (at dentine and enamel levels of diagnosis) amongst Malaysian children and to investigate determinant factors associated with caries detection at these different thresholds. Methods: This study involved life-long residents aged 12 years-old in fluoridated and non-fluoridated areas in Malaysia (n=595). The survey was carried out in 16 public schools by a calibrated examiner, using ICDAS-II criteria. A questionnaire on socio-demographic and oral hygiene practices was self-administered by parents/guardians. Data were analysed using Mann-Whitney U tests and logistic regression. Results: The overall response rate was 74.4%. Caries prevalence at the dentine level or at the dentine and enamel level was significantly (p<0.001) higher among children in the non-fluoridated area (D1-6 MFT>0 = 82.4%, D4-6 MFT>0 = 53.5%) than in the fluoridated area (D1-6 MFT>0 = 68.7%, D4-6 MFT>0 = 25.5%). Considering only the decayed component of the index, no significant differences were observed between the two areas when the detection threshold was set at enamel caries (D1-3) (p=0.506). However, when the detection criteria were elevated to the level of caries into dentine (D4-6) there were clear differences between the fluoridated and non-fluoridated areas (p=0.006). Exposure to fluoridated water proved a significant predictor for lower caries prevalence in the statistical model. Children whose father and mother had a low monthly income had a significantly higher dentine caries prevalence. Conclusion: Results confirmed existing evidence of the benefit of water fluoridation in caries prevention. Detection criteria set at caries into dentine shows clear differences between fluoridated and non-fluoridated areas. Exposure to fluoridated water and socio-economic status were associated with caries prevalence. © BASCD 2019.
format Article
author Mohd Nor, Nor Azlida
Chadwick, Barbara Lesley
Farnell, Damian J.J.
Chestnutt, Ivor Gordon
author_facet Mohd Nor, Nor Azlida
Chadwick, Barbara Lesley
Farnell, Damian J.J.
Chestnutt, Ivor Gordon
author_sort Mohd Nor, Nor Azlida
title The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas
title_short The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas
title_full The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas
title_fullStr The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas
title_full_unstemmed The prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas
title_sort prevalence of enamel and dentine caries lesions and their determinant factors among children living in fluoridated and non-fluoridated areas
publisher Dennis Barber
publishDate 2019
url http://eprints.um.edu.my/23815/
https://www.cdhjournal.org/issues/36-3-september-2019/985-the-prevalence-of-enamel-and-dentine-caries-lesions-and-their-determinant-factors-among-children-living-in-fluoridated-and-non-fluoridated-areas
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score 13.211869