结论不同家庭收入对中小学生的口腔健康和口腔卫生行为有重要影响。
Conclusion Different family incomes affect students' oral health and oral health behaviors.
目的了解太原市中小学生口腔健康状况及口腔卫生行为，以便为进行中学生口腔健康教育提供参考。
Object: find out the oral health situation and oral hygiene behavior of pupils in Taiyuan City in order to provide reference for the education of oral health to them.
结论口腔洁治术是去除结石、菌斑最有效的方法，但后期正确的口腔卫生行为是保持口腔健康、维持疗效的关键。
Conclusion Scaling is the most effective way to remove calculus and plaque; following correct oral health behavior is the key for oral health maintenance.
方法对175名12～14岁儿童2年中新增龋与基线DMFS、口腔卫生行为、菌斑指数和牙菌斑中无机成分等指标进行纵向观察；
Methods Subjects were 175 of 12~14 years old schoolchildren. DMFS, plaque scores and oral health behavior were recorded in baseline, year 1 and year 2 examinations.
方法对175名12～14岁儿童2年中新增龋与基线DMFS、口腔卫生行为、菌斑指数和牙菌斑中无机成分等指标进行纵向观察；
Methods Subjects were 175 of 12~14 years old schoolchildren. DMFS, plaque scores and oral health behavior were recorded in baseline, year 1 and year 2 examinations.
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