安氏Ⅱ1错拔牙与非拔牙组前后颅面硬组织的极坐标分析  

作　　者：曹宇皎 李燕 郭海云 苏津蕊 杨晓昀 于阳阳 韦丽宾 

机构地区：[1]河北任丘华北石油总医院口腔科,河北062552

出　　处：《当代医学》2016年第4期3-5,共3页Contemporary Medicine

摘　　要：目的运用极坐标测量分析方法评价安氏II1错拔牙与非拔牙组的疗效。方法随机选取收治的安氏II1患者60例,按随机数字表法分为拔牙组治与非拔牙组,各30例,用极坐标测量方法分析面部硬组织变化特征。结果治疗后,拔牙组上齿槽座点(ρA)、下齿槽座点(B)、颏前点(Po)、颏顶点(Gn)、颏下点(Me)、下颌角点(Go)分别为(58.50±2.91)mm、(78.98±4.95)mm、(85.03±4.85)mm、(88.48±4.45)mm、(87.18±5.65)mm、(58.73±5.35)mm;非拔牙组ρA、B、Po、Gn、Me、Go分别为(58.82±3.66)mm、(79.22±5.43)mm、(87.43±5.95)mm、(88.30±5.74)mm、(86.53±5.44)mm、(57.88±5.24)mm,均比治疗前有所增大,差异有统计学意义(P<0.05)。拔牙组颏前点(θPo)、颏顶点(Gn)、颏下点(Me)分别为(68.04±4.88)°、(72.80±3.67)°、(75.57±2.95)°;非拔牙组分别为(71.03±5.62)°、(76.31±3.74)°、(77.44±3.15)°,2组治疗后比较差异有统计学意义(P<0.05)。结论拔牙组会影响上颌骨向前的生长量,使下颌平面相对于前颅底平面发生逆时针旋转。Objective To investigate the influence of Angle class Illmalocclusion with extraction and non-estraction treatment by polar coordinate analysis. Methods 30 extraction patients and 30 non-estraction patients of Angle class Ⅱ1malocclusion were selected, polar coordinate method was used tuo assess differences between two groups. Results After extraction treatment,pA, B, Po, Gn, Me, Go were increased significantly in two groups （P〈0.05）; Results of two groups compare： θPo, Gn, Me were significantly （P〈0.05）. Conclusion Extraction would influence the growth of maxillary forward, anticlockwise rotation of mandibular plane was occurred relative to SN plane.

关 键 词：安氏Ⅱ1错 极坐标分析 颅面硬组织 

分 类 号：R783.5[医药卫生—口腔医学]