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Conference Paper: Oral health and hygiene status of Hong Kong kindergarten children
Title | Oral health and hygiene status of Hong Kong kindergarten children |
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Authors | |
Issue Date | 2009 |
Publisher | International Association for Dental Research. |
Citation | The 2nd Meeting of IADR Pan Asian Pacific Federation (PAPF) and the 1st Meeting of IADR Asia/Pacific Region (APR), Wuhan, China, 22-24 September 2009. How to Cite? 第二届国际牙科研究学会(IADR)泛亚洲太平洋联盟(Pan-Asia Pacific Federation)会议、第一届国际牙科研究学会亚洲太平洋地区(Asia-Pacific Region, APR)、暨中国分会第十届科技年会, 中国, 武汉, 2009年9月22-24日. How to Cite? |
Abstract | OBJECTIVE: To describe the dental caries situation and oral hygiene status of Hong Kong kindergarten children. METHODS: Study population was Chinese children attending grade 1 in kindergartens in Hong Kong. Ethical approval was obtained. The survey took place in early 2009. Children with parental consent were clinically examined in kindergartens by two calibrated examiners using intra-oral LED lights, mouth-mirrors and CPI probes. Diagnostic criteria for dental caries followed the recommendations by the World Health Organization. Oral hygiene was recorded by the visible plaque index (VPI). A questionnaire on the child's demographic background and oral health related behaviors was completed by the parents. RESULTS: A total of 579 children from 15 kindergartens were invited and 531 children were examined. Response rate was 91.7%. Their mean age was 44 months (SD=4) and 55.6 % of them were boys. Their prevalence of dental caries experience was 28.6%. The mean dmfs score was 1.26, and active decay (ds) accounted for 96.4% of the score. Higher dmfs scores were found in children who had frequent intake of sweet snacks, 3 times or more a day, compared to those who had not (1.1 vs. 2.6, p<0.05). Children in lower socio-economic classes (lower parental education level and lower family income) also had more caries experience. Mean VPI score of the children was 49.7%. Only 1.5% of them had no visible plaque on their teeth, while 42.6% had visible plaque on more than half of their tooth surfaces (VPI>50%). Lower VPI scores were found in children who brushed their teeth more frequently. CONCLUSION: Although the prevalence of dental caries among Hong Kong kindergarten children was not high, their caries experience and oral hygiene status varied with their socio-economic background, and their dietary and tooth brushing habits. |
Description | Scientific Groups Program: Seq. no. 11 - Poster Session II: abstract no. 0303 |
Persistent Identifier | http://hdl.handle.net/10722/94247 |
DC Field | Value | Language |
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dc.contributor.author | Wu, D | en_HK |
dc.contributor.author | Lo, ECM | en_HK |
dc.contributor.author | Zhang, Y | en_HK |
dc.contributor.author | Chu, CH | en_HK |
dc.date.accessioned | 2010-09-25T15:25:45Z | - |
dc.date.available | 2010-09-25T15:25:45Z | - |
dc.date.issued | 2009 | en_HK |
dc.identifier.citation | The 2nd Meeting of IADR Pan Asian Pacific Federation (PAPF) and the 1st Meeting of IADR Asia/Pacific Region (APR), Wuhan, China, 22-24 September 2009. | en_HK |
dc.identifier.citation | 第二届国际牙科研究学会(IADR)泛亚洲太平洋联盟(Pan-Asia Pacific Federation)会议、第一届国际牙科研究学会亚洲太平洋地区(Asia-Pacific Region, APR)、暨中国分会第十届科技年会, 中国, 武汉, 2009年9月22-24日. | zh_HK |
dc.identifier.uri | http://hdl.handle.net/10722/94247 | - |
dc.description | Scientific Groups Program: Seq. no. 11 - Poster Session II: abstract no. 0303 | - |
dc.description.abstract | OBJECTIVE: To describe the dental caries situation and oral hygiene status of Hong Kong kindergarten children. METHODS: Study population was Chinese children attending grade 1 in kindergartens in Hong Kong. Ethical approval was obtained. The survey took place in early 2009. Children with parental consent were clinically examined in kindergartens by two calibrated examiners using intra-oral LED lights, mouth-mirrors and CPI probes. Diagnostic criteria for dental caries followed the recommendations by the World Health Organization. Oral hygiene was recorded by the visible plaque index (VPI). A questionnaire on the child's demographic background and oral health related behaviors was completed by the parents. RESULTS: A total of 579 children from 15 kindergartens were invited and 531 children were examined. Response rate was 91.7%. Their mean age was 44 months (SD=4) and 55.6 % of them were boys. Their prevalence of dental caries experience was 28.6%. The mean dmfs score was 1.26, and active decay (ds) accounted for 96.4% of the score. Higher dmfs scores were found in children who had frequent intake of sweet snacks, 3 times or more a day, compared to those who had not (1.1 vs. 2.6, p<0.05). Children in lower socio-economic classes (lower parental education level and lower family income) also had more caries experience. Mean VPI score of the children was 49.7%. Only 1.5% of them had no visible plaque on their teeth, while 42.6% had visible plaque on more than half of their tooth surfaces (VPI>50%). Lower VPI scores were found in children who brushed their teeth more frequently. CONCLUSION: Although the prevalence of dental caries among Hong Kong kindergarten children was not high, their caries experience and oral hygiene status varied with their socio-economic background, and their dietary and tooth brushing habits. | - |
dc.language | eng | en_HK |
dc.publisher | International Association for Dental Research. | - |
dc.relation.ispartof | IADR PAPF/APR Meeting | en_HK |
dc.relation.ispartof | 国际牙科研究学会泛亚洲太平洋联盟会议、国际牙科研究学会亚洲太平洋地区、暨中国分会科技年会 | zh_HK |
dc.title | Oral health and hygiene status of Hong Kong kindergarten children | en_HK |
dc.type | Conference_Paper | en_HK |
dc.identifier.email | Wu, D: aquariusd@gmail.com | en_HK |
dc.identifier.email | Lo, ECM: edward-lo@hku.hk | en_HK |
dc.identifier.email | Chu, CH: chchu@hku.hk | en_HK |
dc.identifier.authority | Lo, ECM=rp00015 | en_HK |
dc.identifier.authority | Chu, CH=rp00022 | en_HK |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.hkuros | 169136 | en_HK |
dc.description.other | The 2nd Meeting of IADR Pan Asian Pacific Federation (PAPF) and the 1st Meeting of IADR Asia/Pacific Region (APR), Wuhan, China, 22-24 September 2009. | - |
dc.description.other | 第二届国际牙科研究学会(IADR)泛亚洲太平洋联盟(Pan-Asia Pacific Federation)会议、第一届国际牙科研究学会亚洲太平洋地区(Asia-Pacific Region, APR)、暨中国分会第十届科技年会, 中国, 武汉, 2009年9月22-24日. | - |