Abstract: Objective To investigate which maternal related factors in pregnancy influence caries of preschool child. Methods In this case-control study,there were 3 243 healthy children in 22 kindergartens in town.1 408 children suffered caries served as study group,the other 1 835 children with no caries served as control group.Maternal related factors in pregnancy were investigated at the same time. Results There were significant differences between two groups(P<0.05) with following related factors to affect caries of preschool child:maternal pulpitis,gingivitis,to add protein and calcium,smoking or passive-smoking in pregnancy,and preterm.It was showed that to add protein and calcium in pregnancy may be prevent factors.Mother suffered caries,smoking or passive-smoking in pregnancy were the risk factors for children caries through multi-factor Logistic regression analysis. Conclusion Maternal related factors in pregnancy influenced caries of preschool children.It is suggested to strengthen oral health and add nutrition in pregnancy.

Key words: preschool children, caries, pregnancy, related factors

摘要： 目的 了解母亲孕期相关因素对学龄前儿童龋齿的影响,为有针对性制定保护乳牙的措施提供参考依据。方法 用病例对照的方法,对全市城区22所幼儿园3 243名3～6岁在园健康儿童作为研究对象,1 408例患龋儿童作为病例组,1 835名未患龋儿童作为对照组,同时调查母亲孕期及围生期的相关因素。结果 母亲孕期患龋或牙髓炎、牙龈炎,孕期补充蛋白质、钙等、孕期吸烟或被动吸烟、早产对儿童龋齿患病率有影响,差异有统计学意义(P<0.05),多因素Logitic回归分析,结果显示孕期补充蛋白质、钙剂等是学龄前儿童龋齿保护因素,母亲孕期患龋齿、母亲孕期主动或被动吸烟是儿童龋齿的危险因素。结论 母亲孕期相关因素对学龄前儿童龋齿的发生有影响,应加强孕期营养、口腔和全身保健,保护乳牙,促进儿童健康成长。

关键词: 学龄前儿童, 龋齿, 孕期, 相关因素