论文信息 - [Prevalence of dental caries and associated factors among 10-12-year-old students in Chongqing].

[Prevalence of dental caries and associated factors among 10-12-year-old students in Chongqing].

OBJECTIVE To investigate the caries status of the first permanent molars in urban and rural children aged 10- 12 in Chongqing and analyze the related factors in order to provide a theoretical basis for the prevention and treatment of children's caries and targeted suggestions for oral health education. METHODS A multi-stage, stratified, cluster, and random sampling method was used to extract 5 057 children from 18 schools in three districts and three counties in Chongqing for oral health examination and questionnaire survey from March to May 2018. RESULTS The total caries rate of the first permanent molar was 39.2%. The decayed-missing-filled tooth was 0.84±1.20. The rate of filling teeth was 3.4%. The rate of pit and fissure sealing was 6.1%. The prevalence of the first permanent molars was significantly different between men and women, between urban and rural areas, between only children and non-only children, and between ethnic minorities and Han nationality (P<0.001). The gap between the pit and fissure sealing was significantly different between urban and rural areas (P< 0.001). Multiple logistic regression analysis showed that many independent factors influence the occurrence of caries, including the frequency of brushing teeth every day, the frequency of eating desserts, the habit of eating dessert/drinking milk before going to bed, whether only-children or not, and parents' education background, among others. CONCLUSIONS The first permanent molars of children aged 10-12 in Chongqing have a high rate of caries but low rates of pit and fissure sealing and dental caries filling. The difference between urban and rural areas is large, children's oral health knowledge is scarce, and children have bad oral hygiene behaviors and eating habits. Children's oral health education must be strengthened, oral health preaching must be implemented in schools, the oral health knowledge of children in school must be improved, and urban-rural differences must be minimized.

[1] P. M. Crory. Oral and systemic health: Deficits in our knowledge , 2016, BDJ.

[2] Wen-Hao Qian,et al. [Investigation of the first permanent molar caries in primary school students in Xuhui District of Shanghai Municipality]. , 2012, Shanghai kou qiang yi xue = Shanghai journal of stomatology.

[3] A. Polychronopoulou,et al. Prevalence of sealants in relation to dental caries on the permanent molars of 12 and 15-year-old Greek adolescents. A national pathfinder survey , 2011, BMC public health.

[4] James J Crall,et al. Evidence-based clinical recommendations for the use of pit-and-fissure sealants: a report of the American Dental Association Council on Scientific Affairs. , 2008, Journal of the American Dental Association.

[5] A. Sheiham,et al. Grouping of tooth surfaces by susceptibility to caries: a study in 5-16 year-old children. , 2004, BMC oral health.

[6] W. Vann,et al. Early Childhood Caries: Analysis of Psychosocial and Biological Factors in a High–Risk Population , 2001, Caries Research.

[7] S. Gibson,et al. Dental Caries in Pre–School Children: Associations with Social Class, Toothbrushing Habit and Consumption of Sugars and Sugar–Containing Foods , 1999, Caries Research.