成人均角安氏Ⅰ类、Ⅱ1类及Ⅲ类患者(牙合)平面偏斜量的对比研究OA
Contrastive analysis of occlusal plane canting among adult patients with average-angle profiles with class Ⅰ,classⅡ1,and class Ⅲ malocclusions
目的 通过研究不同矢状向成人均角患者的上颌尖牙及第一磨牙(牙合)平面偏斜量,探讨上颌(牙合)平面偏斜量与矢状向之间的相关性,以及安氏亚类患者(牙合)平面偏斜方向与磨牙矢状关系间的差异,为此类患者的临床治疗提供参考.方法 选择180例成人均角患者,其中安氏Ⅰ类60例,安氏Ⅱ1类60例,安氏Ⅲ类60例(其中安氏Ⅱ1、Ⅲ类的亚类与非亚类患者各30例).应用Mimics软件对患者的锥形束CT(CBCT)成像进行三维重建,分别测量上颌双侧尖牙及第一磨牙至眶耳平面的垂直距离,计算(牙合)平面偏斜量;同时记录尖牙及第一磨牙的(牙合)平面偏斜方向以及与磨牙的矢状关系.采用SPSS 26.0软件对(牙合)平面偏斜量与不同矢状向关系的相关性及安氏亚类的磨牙关系与(牙合)平面偏斜方向的相关性进行统计学分析.结果 尖牙及第一磨牙(牙合)平面偏斜量与不同矢状向组别之间存在相关性(P<0.05).安氏亚类组与非亚类组之间,(牙合)平面偏斜量存在相关性(P<0.05).安氏亚类组中,两侧磨牙关系与(牙合)平面偏斜方向存在相关性(P<0.05).结论 不同矢状向成人均角患者的(牙合)平面偏斜量有一定差异性.临床诊断、分析及治疗安氏Ⅱ类、Ⅲ类及其亚类患者时,不应忽视(牙合)平面偏斜的纠正.
Objective This study aims to investigate the correlation between the inclination of the occlusal plane of maxillary canines and first molars in adult patients with different sagittal skeletal patterns,as well as the differences in the direction of occlusal plane inclination and the sagittal relationship of molars between Angle's subclasses,which provides a reference for the clinical treatment of such patients.Methods A total of 180 adult patients with normal occlusion were selected,including 60 cases of Angle class Ⅰ,60 cases of Angle class Ⅱ division 1,and 60 cases of Angle class Ⅲ(with 30 cases of subclass and non-subclass for Angle class Ⅱ division 1 and Ⅲ).Three-dimensional reconstruction of cone beam computed tomography was performed using Mimics software.The vertical distances from the maxillary bilateral ca-nines and first molars to the Frankfort horizontal plane were measured,and the inclination of the occlusal plane was calcu-lated.The direction of the occlusal plane inclination and the sagittal relationship of the molars were recorded.SPSS 26.0 software was used to statistically analyze the correlation between the inclination of the occlusal plane and diffe-rent sagittal skeletal patterns.The correlation between the sagittal relationship of molars and the direction of occlusal plane inclination in Angle subclasses was also explored.Results A correlation existed between the inclination of the occlusal plane of canines and first molars and different sagittal skeletal groups(P<0.05).A correlation existed be-tween the inclination of the occlusal plane in Angle subclass groups and non-subclass groups(P<0.05).In the Angle sub-class group,a correlation existed between the bilateral molar relationships and the direction of occlusal plane inclination(P<0.05).Conclusion Certain differences are observed in the inclination of the occlusal plane in adult patients with dif-ferent sagittal skeletal patterns.The correction of the occlusal plane inclination should not be ignored in the clinical diag-nosis,analysis,and treatment of patients with Angle class Ⅱ and Angle class Ⅲ,as well as their subclass.
兰菁;伍军
南昌大学附属口腔医院正畸科 口腔疾病江西省重点实验室江西省口腔疾病临床医学研究中心 南昌 330000南昌大学附属口腔医院正畸科 口腔疾病江西省重点实验室江西省口腔疾病临床医学研究中心 南昌 330000
医药卫生
(牙合)平面偏斜锥形束CT安氏Ⅲ类安氏Ⅱ类矢状向
occlusal plane cantcone beam computed tomographyAngle class ⅢAngle class Ⅱsagittal direction
《国际口腔医学杂志》 2026 (1)
26-35,10
评论