Correlation between the changes of caries activity and new caries in 3 years old caries free children after 1 year intervention
10.16835/j.cnki.1000-9817.2022.11.028
- VernacularTitle:无龋3岁儿童干预1年后龋活性变化与新发龋的相关性
- Author:
CHEN Ling, ZHANG Chi, ZHAO Xinyan
1
Author Information
1. Department of Stomatology, Maternal and Child Health Institute of Zhangjiagang, Zhangjiagang (215600) , Jiangsu Province, China
- Publication Type:Journal Article
- Keywords:
Dental caries;
Incidence;
Intervention studies;
Child,preschool
- From:
Chinese Journal of School Health
2022;43(11):1717-1719
- CountryChina
- Language:Chinese
-
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( χ 2/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( χ 2/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( χ 2=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( χ 2/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.
