论文部分内容阅读
对宁波市城乡1440名中老年人进行牙齿楔状缺损调查。结果发现：①35～44岁组，楔缺发病率为46．25％，楔缺均数为1．80颗；65～74岁组为52．08％和2．35颗。②楔缺发生率城市（55．6％）明显高于农村（35.63％），男性（55．83％）明显高于女性（42．08％）。③楔缺最好发于，依次向近中和远中递减。④楔缺的程度与城乡、年龄有一定关系，与性别关系不大。⑤在完整牙列，楔缺群体的龋均明显大于非楔缺群体。本文对楔缺调查结果进行分析和讨论。
Investigation of dental wedge-shaped defect in 1440 middle-aged and elderly people in urban and rural areas of Ningbo. The results showed that: (1) The incidence of wedge-lacking in the group of 35-44 years old was 46.25%, while the average number of wedge-shaped defects was 1.80; while in the group of 65-74 years old it was 52.08% and 2.35. ② The incidence of wedge-gap was significantly higher in urban (55.6%) than in rural (35.63%), male (55.83%) was significantly higher than female (42.08%). ③ wedge missing the best hair, followed by decreasing in the near and far. ④ the extent of wedge lack of urban and rural areas, age have a certain relationship, little gender and sex. ⑤ caries in the complete dentition, wedge-missing population were significantly greater than non-wedge missing population. This article analyzes and discusses the findings of the lack of wedge.