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为进一步证实刷牙方法与牙齿楔状缺损的关系,我们对20～59岁乌鲁木齐铁路职工1133人进行调查分析。方法及标准: 1.检查方法:用口镜、探针及pH试纸,在自然光线下进行。 2.检查标准:Ⅰ度:牙齿的唇、颊颈部有两个斜面所形成的釉质缺损;Ⅱ度:牙齿的唇、颊颈部有两个斜面所形成的釉质及部份牙本质缺损;Ⅲ度:牙齿的唇、颊颈部有两个斜面所形成的釉质及部分牙本质缺损合并牙髓炎症状者;Ⅳ度:牙齿的唇颊预部有两个斜面所形成的釉质及部分牙本质
To further confirm the relationship between brushing method and dental wedge-shaped defect, we conducted a survey and analysis of 1133 railway workers aged 20-59 in Urumchi. Methods and standards: 1. Inspection methods: using the mirror, probe and pH test strips, under natural light. 2. Inspection standards: Ⅰ degree: the teeth of the lip, buccal and cervical incision formed by the two enamel defects; Ⅱ degree: the teeth of the lip, buccal and cervical have two incisions enamel and dentate defect; Ⅲ degree: the lip of the teeth, the buccal neck has two slopes formed by the enamel and part of the dentinal defect with symptoms of pulpitis; Ⅳ degrees: pre-dentition of the teeth have two slopes formed by the enamel and some teeth Nature