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目的:应用错严重程度指数(MSI)评价石河子大学生对牙齿健康美观的治疗需求。方法:采用分层随机化抽样法,总共调查677例(男364例,女313例)18～25岁大学生,平均年龄22.5岁。制取超硬石膏模型,应用MSI为客观指标确定正畸需要量。结果:男性MSI分值为14.85±12.23,女性MSI分值为14.93±11.77,做两者均数之间比较t=0.094,P>0.05,MSI量值无男女性别差异。根据MSI分类得出,男性需要正畸治疗者为35.99%,女性需要正畸治疗者为38.98%。男女性正畸治疗需要量χ2=0.642,P>0.05,性别间无差异。结论:石河子大学生中需要正畸者较多,应加强防治和宣传。MSI方法简单、快捷可靠,可作为正畸需要量的筛查标准,推广应用。
OBJECTIVE: To evaluate the treatment needs of Shihezi students for aesthetic health of teeth by using the severity of misdiagnosis index (MSI). Methods: A total of 677 college students (364 males and 313 females) aged 18-25 years were investigated by stratified random sampling, with an average age of 22.5 years. Preparation of super-anhydrite model, the application of MSI to determine the objective indicators of orthodontic needs. Results: The male MSI score was 14.85 ± 12.23 and the female MSI score was 14.93 ± 11.77. There was no significant difference in gender between male and female in the mean value of MSI (t = 0.094, P> 0.05). According to the MSI classification, 35.99% of men needed orthodontic treatment and 38.98% of women needed orthodontic treatment. Male and female orthodontic treatment needs χ2 = 0.642, P> 0.05, no gender differences. Conclusion: Shihezi students need more orthodontics, prevention and control should be strengthened. MSI method is simple, fast and reliable, can be used as a screening standard for orthodontic needs, promote the application.