Investigation and analysis of deciduous tooth caries in preschool children in Yuelu district of Changsha City

FENG Ni; LI Yufeng; LI Yuehong; YU Xiang

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Journal of Hunan Normal University(Medical Science) ›› 2024, Vol. 21 ›› Issue (4) : 139-144.

Clinical Medicine

Investigation and analysis of deciduous tooth caries in preschool children in Yuelu district of Changsha City

FENG Ni¹, LI Yufeng¹, LI Yuehong¹, YU Xiang²

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Abstract

Objective To investigate the caries status of deciduous teeth in 3~5 years old children in Yuelu District of Changsha, Hunan province, and to provide data support for oral health care and related research . Methods According to the requirements of the fourth national Oral health Epidemiological survey, A total of 1 762 permanent preschool children (35 240 teeth) aged 3, 4 and 5 years old were randomly selected from Yuelu District, Changsha City, Hunan Province during the period of 2021 to 2022. The caries status of all deciduous teeth was examined, and the caries prevalence rate, average caries and filling rate were calculated. Results The caries prevalence rates of 3 to 5 years old children were 37.96%, 53.70% and 59.79%, respectively in Yuelu District, Changsha City, Hunan Province. ; The mean dmft were 1.12、2.22、3.05 respectively; the filled rates were 2.57%、7.84%、11.80% respectively. The prevalence of caries in the 3-year group was significantly lower than that in the 4-year and 5-year groups. Similar to the prevalence of caries, the mean dmft increased with age. The mean dmft of children in different age groups were statistically significant . There was no significant difference in the mean dmft between public and private kindergartens . The filled rate of the 3-year-old group was significantly lower than that of the 4-year-old group and the 5-year-old group, and the filled rate of the 4-year-old group was significantly lower than that of the 5-year-old group . There was no statistical significance in the filled rate of dental caries between public and private kindergartens . The number of caries in 1 762 preschoolers (35 240 teeth) was 3 813, and they were most common in maxillary deciduous central incisor. Conclusion Children aged 3-5 years old in Yuelu District of Changsha City have a serious decidary tooth caries. It is necessary to strengthen the publicity and education of children caries and improve the oral health awareness of parents and children.

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preschool children / deciduous tooth / caries / epidemiology

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FENG Ni, LI Yufeng, LI Yuehong, YU Xiang. Investigation and analysis of deciduous tooth caries in preschool children in Yuelu district of Changsha City[J]. Journal of Hunan Normal University(Medical Science). 2024, 21(4): 139-144

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