CAJ | 학술논문

目的：探讨安氏Ⅲ类错畸形中平面与前牙覆的相关性，通过控制平面的变化为不同前牙覆安氏Ⅲ类错患者的正畸、正颌治疗提供策略依据。方法选取90例安氏Ⅲ类前牙反成人正畸患者治疗前的头颅侧位片作为试验组，同时选取30例成人个别正常的头颅侧位片作为对照组。根据前牙覆的大小将安氏Ⅲ类错分为3组，即开组、反覆组、反深覆组，每组各测量14项指标。对各组间的差异进行方差分析和多重比较分析，同时对前牙覆与前后平面的相关性进行直线相关分析。结果安氏Ⅲ类错中后牙平面倾斜度（OP-P角）和前牙覆呈负相关（r=-0.24，P<0.05），前牙平面倾斜度（OP-A角）与前牙覆呈正相关（r=0.23，P<0.05）。结论不同前牙覆的平面形态各有不同，在正畸治疗不同前牙覆安氏Ⅲ类错时，应重视后牙垂直高度的控制及后牙平面的倾斜度改变。
목적：탐토안씨Ⅲ류착기형중평면여전아복적상관성，통과공제평면적변화위불동전아복안씨Ⅲ류착환자적정기、정합치료제공책략의거。방법선취90례안씨Ⅲ류전아반성인정기환자치료전적두로측위편작위시험조，동시선취30례성인개별정상적두로측위편작위대조조。근거전아복적대소장안씨Ⅲ류착분위3조，즉개조、반복조、반심복조，매조각측량14항지표。대각조간적차이진행방차분석화다중비교분석，동시대전아복여전후평면적상관성진행직선상관분석。결과안씨Ⅲ류착중후아평면경사도（OP-P각）화전아복정부상관（r=-0.24，P<0.05），전아평면경사도（OP-A각）여전아복정정상관（r=0.23，P<0.05）。결론불동전아복적평면형태각유불동，재정기치료불동전아복안씨Ⅲ류착시，응중시후아수직고도적공제급후아평면적경사도개변。
Objective To investigate the correlation between Angle’s class Ⅲ patients’ occlusion plane and anterior overbite by controlling the changes in occlusion plane during orthodontic treatment. Methods In total, 90 Angle’s class Ⅲ adult orthodontic patients were selected as the experimental group, and 30 normal adults were selected as the control group. According to the overbite, the class Ⅲ patients were divided into three groups, and 14 indicators were measured. ANOVA and multiple comparison analysis were used to analyze the difference between class Ⅲ patients, and linear analysis was used to analyze the correlation between anterior overbite and anterior-posterior occlusion plane. Results In class Ⅲ patients, posterior occlusion plane and anterior overbite size were negatively correlated (r=-0.24, P<0.05), whereas anterior occlusal plane and anterior overbite size were positive correlated (r=0.23, P<0.05). Conclusion The shape of the occlusion plane varies in different anterior overbite patients. During orthodontic treatment in different overbite class Ⅲ patients, the vertical height of the posterior teeth and the rotation of the occlusion plane should be controlled.