不同错牙合畸形中司皮曲线的评估。
Assessment of curve of spee in different malocclusions.
作者信息
Sayar Gülşilay, Oktay Hüsamettin
机构信息
Department of Orthodontics, İstanbul Medipol University, School of Dentistry, İstanbul, Turkey.
出版信息
Eur Oral Res. 2018 Sep;52(3):127-130. doi: 10.26650/eor.2018.475. Epub 2018 Sep 1.
PURPOSE
The aim of this study was to compare the depth of curve of Spee (COS) in Angle Class I, Angle Class II and Angle Class III malocclusions.
MATERIALS AND METHODS
The Samples were chosen among the diagnostic materials in İstanbul Medipol University Department of Orthodontics. Ninety plaster models were chosen, and were divided into 3 groups (n=30) according to Angle dental malocclusion classification. The depth of curve of Spee was measured on left and right sides of mandibular dental models and mean values were used as depth of curve of Spee. ANOVA test was used to evaluate normally distributed data. Comparison of the sides were performed by using paired sample t test. Significance level was set to p<0.05.
RESULTS
The depth of COS was found as deepest in Class II malocclusion (2.9±0.8 mm) and was relative flat in Class III malocclusion (2.1±0.9 mm) and the difference was statistically significant (p<0.05). No significant difference was found between Angle Class I and Class III malocclusions.
CONCLUSION
Since the depth of curve of Spee is increased in Class II malocclusions, this factor should be considered in treatment planning.
目的
本研究旨在比较安氏Ⅰ类、安氏Ⅱ类和安氏Ⅲ类错牙合畸形中Spee曲线（COS）的深度。
材料与方法
样本选自伊斯坦布尔梅迪波尔大学正畸科的诊断材料。选取90个石膏模型，根据安氏错牙合分类法分为3组（每组n = 30）。在下颌牙模型的左右两侧测量Spee曲线的深度，并将平均值作为Spee曲线的深度。采用方差分析（ANOVA）检验评估正态分布数据。使用配对样本t检验对两侧进行比较。显著性水平设定为p < 0.05。
结果
发现安氏Ⅱ类错牙合畸形中COS深度最深（2.9±0.8 mm），安氏Ⅲ类错牙合畸形相对较平（2.1±0.9 mm），差异具有统计学意义（p < 0.05）。安氏Ⅰ类和Ⅲ类错牙合畸形之间未发现显著差异。
结论
由于安氏Ⅱ类错牙合畸形中Spee曲线深度增加，在治疗计划中应考虑这一因素。
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