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Three-year effect evaluation of pit-and-fissure sealing of the first permanent molars in Henan provincial childrenChinese Full TextEnglish Full Text (MT)

JI Yali;WANG Zhigang;HE Jian;YANG Biansheng;LI Fengjuan;SUN Jing;SHEN Lijun;First Affliated Hospital of Zhengzhou University;

Abstract: Objective To examine the retention rate and caries prevention effect of fit-and-fissure sealants after 3 years of children oral disease comprehensive intervention program in Henan province. Methods For each of the five provincial regions attending the program in 2015, two classes from grade 2 in four primary schools were selected. Children in two schools were assigned into intervention group and the first permanent molars which were appriopriate for sealing were sealed with pit-and-fissure sealants.Children in other two schools were included in the control group and the first permanent molars were only examined for caries conditions. Three years later, retention rate of pit-and-fissure sealants and the dental caries prevalence was compared. Results Complete retention rate of sealants in the first permanent molars was 65.55% and the whole retention rate was 94.78%. The caries incidence and mean value of the first permanent molars in the intervention group children was 9.71%,(0.12±0.40) respectively whereas those in control group was 21.90%,(0.39±0.78) respectively. The differences between two groups were statistically significant(χ~2/t = 27.76, 6.91, P<0.01). The relatively effective rate of sealing for caries reduction was 63.43% and the actural effective rate was 6.51% and the pure yield rate of sealing was 12. 19%. Higher sealant retention rate was associated caries prevalence(χ~2=153.28, P<0.01). Conclusion Childhood oral disease intervention project in Henan Province shows positive effects. Sealing of the first permanent molars effectively prevent dental pit and fissure caries.
  • DOI:

    10.16835/j.cnki.1000-9817.2020.08.004

  • Series:

    (E) Medicine & Public Health

  • Subject:

    Stomatology

  • Classification Code:

    R788.1

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