The eruption caries and fissure sealant on the first permanent molar among children aged 7-9 years old in Henan Province

Objective To survey current situation of eruption,caries and fissure sealant on the first permanent molar among children aged 7-9 years old in Henan province,to provide the basis for oral health.Methods Data were from Information System of Oral Disease Comprehensive Intervention Project among Chinese Children in Henan Province collected in 2015.Results The eruption rate was 86.7%,the caries prevalence was 26.8%,and the mean DMFT was 0.6 of the first permanent molar among children aged 7-9 years old in Henan.The dental caries filling rate was 5.2%.The girls' caries prevalence rate (31.3%) was significantly higher than boys'(23.1%) (x2 =569.894,P<0.05).The caries prevalence in urban area (32.3%) was significantly higher than those in rural children(18.0%) (x2 =1 663.925,P<0.05).The number of per capital sealing tooth was 3.3.Sealing rates of the first permanent molar in boys (95.1%) was lower than that of girls'(95.8%) (x2 =55.083,P<0.05),and sealing rates in the rural area (96.3%) was higher than in urban area (94.7%)(x2=251.108,P<0.05).Conclusion Oral health is not optimistic among children in Henan Province,with relatively high dental caries rate and low filling rate.The oral health awareness among children and their parents should be further improved.