摘要
目的通过对正畸治疗前后的三维数字化模型进行测量分析,探讨整平Spee曲线对牙弓形态的影响。方法选取2014—2019年在哈尔滨医科大学附属口腔医院正畸科就诊并治疗结束的42例患者,初诊年龄11~13岁,按治疗前Spee曲线深度分2组。统计分析各组治疗前后的测量值。相关分析和逐步回归统计分析整平Spee曲线的相关因素。结果Spee曲线整平后,两组牙弓宽度、牙弓长度及现有牙弓长度均增大,Spee曲线越深,变化越明显。Person相关分析显示,Spee曲线的整平与牙弓宽度、牙弓长度及现有牙弓长度均显著相关。结论整平Spee曲线将改变牙弓形态,使牙弓宽度、长度、现有牙弓长度均增大,Spee曲线越深,牙弓形态变化越明显。
Objective Through the measurement and analysis of the three-dimensional digital model before and after orthodontic treatment,to explore the effect of leveling curve of Spee on the shape of dental arch.Methods Forty-two patients aged 11 to 13 years old at first diagnosis were selected from the Department of Orthodontics of the Affiliated Stomatological Hospital of Harbin Medical University from 2014 to 2019.According to the depth of the Spee before treatment,the subjects were divided into two groups.Statistical analysis was performed on the measured values before and after treatment in each group.Correlation analysis and regression analysis were done in order to analyze the related factors of leveling curve of Spee.Results After the curve of Spee was leveled,the arch width,the arch length and the existing arch length were significantly increased.The deeper the curve of Spee was,the more obvious the change was.Person correlation analysis showed that the leveling curve of Spee was significantly correlated with the arch width,the arch length and the existing arch length.Conclusion The leveling curve of Spee will change the shape of the arch,which will increase arch width,the arch length and the existing arch length.The deeper the curve of Spee is,the more obvious the shape change of the arch is.
作者
李丽华
朱佳敬
刘博
韩天媛
邵玶
LI Lihua;ZHU Jiajing;LIU Bo;HAN Tianyuan;SHAO Ping(Department of Orthodontics,Stomatology Hospital,Harbin Medical University,Harbin 150001,China)
出处
《口腔医学》
CAS
2020年第12期1098-1102,共5页
Stomatology
