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调查对象和方法1983年9月以西电公司所属五所小学中6岁至12岁学生共4231名作为普查对象,检查方法为“望诊法”及每个学生填写服药史摸底表等。将牙齿着色分为Ⅲ度:Ⅰ度为黄色,Ⅱ度为深黄色或褐灰色,Ⅲ度为伴有釉质发育不全者。结果和讨论一、总着色率:调查4231名,发现有四环素牙症者3509例,占82.4%。二、牙齿变色人数:四环素牙症3509例中Ⅰ度2436例,Ⅱ度871例,Ⅲ度202例。三、服四环素族药物史与牙齿变色损害程度的关系:见附表。
Subjects and Methods In September 1983, 4231 students aged 6 to 12 from five primary schools affiliated to the West Power Company were selected as the census objects. The examination method was “look-up method” and each student completed the medication history list. Divide the teeth into three degrees: Ⅰ degree is yellow, Ⅱ degree is dark yellow or brown gray, Ⅲ degree is associated with enamel hypoplasia. RESULTS AND DISCUSSIONS 1. Total Staining Rate: 4231 were investigated and 3509 cases of tetracycline-type tooth disease were found, accounting for 82.4%. Second, the number of teeth discoloration: Tetracycline tooth disease 3509 cases of I degree 2436 cases, Ⅱ degree 871 cases, Ⅲ degree 202 cases. Third, service tetracycline drug history and the relationship between the degree of tooth discoloration: see schedule.