Correlation between the changes of caries activity and new caries in 3 years old caries-free children after 1 year intervention

CHEN Ling; ZHANG Chi; ZHAO Xinyan

doi:10.16835/j.cnki.1000-9817.2022.11.028

Volume 43 Issue 11

Nov. 2022

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CHEN Ling, ZHANG Chi, ZHAO Xinyan. Correlation between the changes of caries activity and new caries in 3 years old caries-free children after 1 year intervention[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2022, 43(11): 1717-1719. doi: 10.16835/j.cnki.1000-9817.2022.11.028

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CHEN Ling, ZHANG Chi, ZHAO Xinyan. Correlation between the changes of caries activity and new caries in 3 years old caries-free children after 1 year intervention[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2022, 43(11): 1717-1719. doi: 10.16835/j.cnki.1000-9817.2022.11.028

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Correlation between the changes of caries activity and new caries in 3 years old caries-free children after 1 year intervention

doi: 10.16835/j.cnki.1000-9817.2022.11.028

Department of Stomatology, Maternal and Child Health Institute of Zhangjiagang, Zhangjiagang(215600), Jiangsu Province, China

Received Date: 2022-07-19
Rev Recd Date: 2022-08-11

Available Online: 2022-11-30

Publish Date: 2022-11-25

Abstract

Abstract

Objective To observe the relationship between the changes of caries activity and the incidence of new caries in 3 years old caries-free children after 1 year of intervention, and to provide reference for grading management of caries. Methods At baseline in September 2020, 808 caries-free 3-year-old children from 9 kindergartens in Zhangjiagang were selected for oral examination and caries activity detection. After one year of fluoride treatment, fluoride was applied once every 3 months in the high caries activity group and once every 6 months in the moderate and low caries activity groups, a total of 714 caria-free children aged 3 years were followed up for oral examination and caries activity detection in September 2021. The differences of new caries in different caries activity changes groups were analyzed. Results There were 200 new caries (28.0%) and dmft was 0.0(0.0, 1.0). The prevalence of caries (34.1%) and dmft 0.0(0.0, 0.0) in girls were higher than in boys(22.5%)[0.0(0.0, 1.0)], the differences were statistically significant(χ²/Z=11.83, 3.61, P < 0.05). The incidence of new caries among unchanged, decreased and increased of caries activity group was 29.6%, 14.3% and 35.6%, respectively. The average number of dmft was 0.0(0.0, 1.0), 0.0(0.0, 0.0), 0.0(0.0, 1.0), respectively. There were significant differences in the incidence of new caries and dmft among the three groups(χ²/Z=20.68, 21.04, P < 0.05). Fluorinated intervention could affect the changes of caries value. With the increase of the number of interventions, the proportion of children with reduced caries activity increased(χ²=80.55, P < 0.05). However, there were no significant differences in the incidence of new caries and dmft among groups with different intervention frequencies(χ²/Z=0.83, 0.61, P < 0.05). Conclusion Reduction of caries activity through fluoride application could be future approach for caries control among children.
- Dental caries,
- Incidence,
- Intervention studies,
- Child, preschool

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References(17)

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