Dental caries status and its associated factors among schoolchildren aged 6–8 years in Hangzhou, China: a cross-sectional study

Abstract Background Dental caries prevalence reaches the first peak around 6 years old. It is necessary to take effective measures to prevent and treat caries at this stage. This study investigated the prevalence and associated factors of dental caries among schoolchildren aged 6–8 years in Hangzhou...

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Main Authors: Zhi Chen, Junhua Zhu, Jing Zhao, Zhe Sun, Bing Zhu, Haiping Lu, Yuanna Zheng
Format: Article
Language:English
Published: BMC 2023-02-01
Series:BMC Oral Health
Subjects:
Online Access:https://doi.org/10.1186/s12903-023-02795-5
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author Zhi Chen
Junhua Zhu
Jing Zhao
Zhe Sun
Bing Zhu
Haiping Lu
Yuanna Zheng
author_facet Zhi Chen
Junhua Zhu
Jing Zhao
Zhe Sun
Bing Zhu
Haiping Lu
Yuanna Zheng
author_sort Zhi Chen
collection DOAJ
description Abstract Background Dental caries prevalence reaches the first peak around 6 years old. It is necessary to take effective measures to prevent and treat caries at this stage. This study investigated the prevalence and associated factors of dental caries among schoolchildren aged 6–8 years in Hangzhou City, China. Methods A cross-sectional survey was conducted in Hangzhou from October 2017 to May 2018. Oral health status of schoolchildren in 1st and 2nd grades of primary schools aged 6–8 years was examined by well-trained examiners according to the WHO criteria. Questionnaires about potential caries-related factors were distributed to their parents. ANOVA test and logistic regression were conducted for the statistical analyses (α = 0.05). Results A total of 7959 pairs of schoolchildren and their parents were invited to participate, and 5595 were included in this study according to the eligible criteria (response rate: 70.3%). The overall prevalence and mean dmft/DMFT of dental caries in the investigated schoolchildren were 52.78% and 2.11. The prevalence and mean dmft/DMFT were 39.05% and 1.63 in the deciduous teeth, while these were 21.45% and 0.48 in the permanent teeth, respectively. For the first permanent molars (FPMs), the rate of fully eruption and pit and fissure sealing (PFS) were 79.09% and 6.60%, respectively. Multiple logistic regression showed that girl (OR = 1.12, 95% CI 1.01–1.25, p < 0.05), seldom or never brush teeth (OR = 2.36, 95% CI 1.08–5.44, p < 0.05), consuming sweet food or drink once or more time a day (OR = 1.14, 95% CI 1.00–1.29, p < 0.05; OR = 1.21, 95% CI 1.07–1.36, p < 0.05), dental visit experiences (OR = 1.58, 95% CI 1.35–1.86, p < 0.001) were positively and no tooth pain in the past 12 months (OR = 0.55, 95% CI 0.38–0.80, p < 0.05) were negatively associated with caries. Conclusions Dental caries was prevalent among schoolchildren aged 6–8 years in Hangzhou, and was associated with gender, frequency of toothbrushing, sweet food or drink consuming, tooth pain and dental visit experiences. A large number of fully erupted FPMs did not receive timely PFS.
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spelling doaj.art-398e1cb912164c0ca8919bb3b93cd7a22023-03-22T12:34:02ZengBMCBMC Oral Health1472-68312023-02-0123111010.1186/s12903-023-02795-5Dental caries status and its associated factors among schoolchildren aged 6–8 years in Hangzhou, China: a cross-sectional studyZhi Chen0Junhua Zhu1Jing Zhao2Zhe Sun3Bing Zhu4Haiping Lu5Yuanna Zheng6School/Hospital of Stomatology, Zhejiang Chinese Medical UniversitySchool/Hospital of Stomatology, Zhejiang Chinese Medical UniversitySchool/Hospital of Stomatology, Zhejiang Chinese Medical UniversitySchool/Hospital of Stomatology, Zhejiang Chinese Medical UniversityHangzhou Center for Disease Control and PreventionSchool/Hospital of Stomatology, Zhejiang Chinese Medical UniversitySchool/Hospital of Stomatology, Zhejiang Chinese Medical UniversityAbstract Background Dental caries prevalence reaches the first peak around 6 years old. It is necessary to take effective measures to prevent and treat caries at this stage. This study investigated the prevalence and associated factors of dental caries among schoolchildren aged 6–8 years in Hangzhou City, China. Methods A cross-sectional survey was conducted in Hangzhou from October 2017 to May 2018. Oral health status of schoolchildren in 1st and 2nd grades of primary schools aged 6–8 years was examined by well-trained examiners according to the WHO criteria. Questionnaires about potential caries-related factors were distributed to their parents. ANOVA test and logistic regression were conducted for the statistical analyses (α = 0.05). Results A total of 7959 pairs of schoolchildren and their parents were invited to participate, and 5595 were included in this study according to the eligible criteria (response rate: 70.3%). The overall prevalence and mean dmft/DMFT of dental caries in the investigated schoolchildren were 52.78% and 2.11. The prevalence and mean dmft/DMFT were 39.05% and 1.63 in the deciduous teeth, while these were 21.45% and 0.48 in the permanent teeth, respectively. For the first permanent molars (FPMs), the rate of fully eruption and pit and fissure sealing (PFS) were 79.09% and 6.60%, respectively. Multiple logistic regression showed that girl (OR = 1.12, 95% CI 1.01–1.25, p < 0.05), seldom or never brush teeth (OR = 2.36, 95% CI 1.08–5.44, p < 0.05), consuming sweet food or drink once or more time a day (OR = 1.14, 95% CI 1.00–1.29, p < 0.05; OR = 1.21, 95% CI 1.07–1.36, p < 0.05), dental visit experiences (OR = 1.58, 95% CI 1.35–1.86, p < 0.001) were positively and no tooth pain in the past 12 months (OR = 0.55, 95% CI 0.38–0.80, p < 0.05) were negatively associated with caries. Conclusions Dental caries was prevalent among schoolchildren aged 6–8 years in Hangzhou, and was associated with gender, frequency of toothbrushing, sweet food or drink consuming, tooth pain and dental visit experiences. A large number of fully erupted FPMs did not receive timely PFS.https://doi.org/10.1186/s12903-023-02795-5Oral healthDental cariesAssociated factorsHealth behaviors
spellingShingle Zhi Chen
Junhua Zhu
Jing Zhao
Zhe Sun
Bing Zhu
Haiping Lu
Yuanna Zheng
Dental caries status and its associated factors among schoolchildren aged 6–8 years in Hangzhou, China: a cross-sectional study
BMC Oral Health
Oral health
Dental caries
Associated factors
Health behaviors
title Dental caries status and its associated factors among schoolchildren aged 6–8 years in Hangzhou, China: a cross-sectional study
title_full Dental caries status and its associated factors among schoolchildren aged 6–8 years in Hangzhou, China: a cross-sectional study
title_fullStr Dental caries status and its associated factors among schoolchildren aged 6–8 years in Hangzhou, China: a cross-sectional study
title_full_unstemmed Dental caries status and its associated factors among schoolchildren aged 6–8 years in Hangzhou, China: a cross-sectional study
title_short Dental caries status and its associated factors among schoolchildren aged 6–8 years in Hangzhou, China: a cross-sectional study
title_sort dental caries status and its associated factors among schoolchildren aged 6 8 years in hangzhou china a cross sectional study
topic Oral health
Dental caries
Associated factors
Health behaviors
url https://doi.org/10.1186/s12903-023-02795-5
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