836名退休职工牙齿楔状缺损调查及病因分析

Investigation on the situation and cause of the wedge-shaped defect of tooth in 836 retired people

目的:了解836名退休职工牙体楔状缺损疾病的发生和分布情况,探讨楔状缺损发生的病因。方法:对836名退休职工的牙体楔状缺损按年龄、牙位、缺损程度、刷牙方式、生活饮食习惯等进行调查分析。结果:楔状缺损随年龄的增长患病率逐渐增高(60岁以下者),且缺损程度随着年龄的增加有明显地增加趋势;楔状缺状发病率最高的是第一双尖牙;其发生与刷牙方法关系密切,与饮食及生活习惯有关。结论:牙体楔状缺损是与年龄、机械摩擦、化学侵蚀和应力疲劳等多因素有关的疾病。

Objective; To find out the situation of the wedge-shaped defects in the retired people, and identify the possible risk factors associated with the formation of wedge-shaped defects. Methods: 836 retired workers with wedge-shaped defect were examined. The investigation age,tooth position, depth of wedge-shaped defect, habit of brushing teeth and custom of eating and life. Results: The prevalence and severity of wedge-shaped defects were found to increas with age. Most of wedge-shaped defects were found at first bicuspid teeth. The habit of brushing teeth had significant relation to wedge-shape defects of tooth, and custom of eating and life also had relations to the formation of wedge-shaped defects. Conclusion It can be concluded that multiple factors, such as age, mechanical friction, chemical corrosion and stress fatigue, may be the important factors that cause wedge-shaped tooth defect.