摘要
目的 探讨老年人牙体楔状缺损患病情况及相关因素。方法 使用Smith磨损指数对 482例老年人牙体楔状缺损情况进行调查分析。结果 老年人牙体楔状缺损的患病率为 91.9%。牙体楔状缺损的好发部位和缺损程度以第一双尖牙为首位 ,其次第二双尖牙、第一磨牙 ,且随着年龄递增。结论 牙体楔状缺损的严重程度随年龄增加而递增 ,并且提示力疲劳可能是牙体楔状缺损形成的一个重要原因。
Objective To study the tooth wedge-shaped defects and related factors in aged people.Methods Tooth wedge-shaped defects in 482 retired people were investigated with Smith abrasion index.Results The prevalence of tooth wedge-shaped defects in aged people was 91.9%. The tooth wedge-shaped defects could usually be seen first on the first bicuspid,and next on the second bicuspid and first molar.Conclusion Occlusal force fatigue may be one of the most important reasons for tooth wedge-shaped defects.
出处
《同济大学学报（医学版）》
CAS
2001年第6期36-37,40,共3页
Journal of Tongji University(Medical Science)
关键词
牙体楔状缺损
老年人
He力疲劳
tooth wedge-shaped defect
aged people
occlusal force fatigue
