Health Status of Children’s First Permanent Molars in Fancheng District of Xiangyang City

doi:10.13701/j.cnki.kqyxyj.2025.06.010

Abstract

Abstract: Objective: To investigate the eruption, caries, and pit and fissure sealing of the first permanent molars among children in the third and fourth grades in Fancheng District of Xiangyang City. Methods: Data of examination on the first permanent molars of children in the third and fourth grades participating in China Children Oral Disease Comprehensive Intervention Project in Fancheng District of Xiangyang City in 2023 were collected and analyzed. Results: Among 5,447 children surveyed, the total eruption rate of first permanent molars was 79.14%, the caries prevalence was 26.84%, the mean decayed, missing and filled teeth (DMFT) was 0.48±0.93, the mean decayed, missing and filled surfaces (DMFS) was 0.60±1.34, the ratio of caries filling was 27.54%, the rate of pit and fissure sealing was 17.35%, the rate of enamel hypoplasia was 4.17%, and 84.78% of children need pit and fissure sealing. The total eruption rate, caries prevalence, mean DMFT and mean DMFS of the first permanent molars were all higher among girls than among boys, and higher in the fourth grade than in the third grade. The maxillary teeth had a higher complete eruption rate and a lower caries prevalence rate than the mandibular ones. The pit and fissure sealing rate and the filling ratio in the third grade were both higher than those in the fourth grade, while the proportions of children requiring pit and fissure sealing were the opposite. The pit and fissure sealing rate among girls was higher than that among boys, while the proportions of children requiring pit and fissure sealing were the opposite. There was no significant difference in the filling rate of dental caries among children of different genders. Conclusion: The health status of the first permanent molars among children in the third and fourth grades in Fancheng District is not optimistic. With a serious caries problem, there is a great need for dental caries filling and pit and fissure sealing. It should be considered to strengthen the construction of oral health services.

Key words: first permanent molar, eruption rate, caries prevalence, pit and fissure sealing

LIANG Shanshan, SUN Hanyi, ZHANG Jianjun, CHEN Yan. Health Status of Children’s First Permanent Molars in Fancheng District of Xiangyang City[J]. Journal of Oral Science Research, 2025, 41(6): 511-516.

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