摘要
目的探讨功能矫治对安氏Ⅱ类1分类错(牙合)患者颞下颌关节功能的影响。方法患者组(安氏Ⅱ类1分类错(牙合))20例和对照组(安氏1类)20人,记录患者组功能矫治前后及对照组开闭口运动时髁突运动状况,对结果进行秩和检验。结果①相比对照组,患者组矫治前髁突轨迹明显垂直化,髁突垂直向位移[左侧为2.21(1.01)mm,右侧为1.12(1.02)mm]及倾斜度[左侧为12.89(9.12)°,右侧为12.12(8.89)°]偏大(P<0.05);②矫治后髁突轨迹在各个方向上的位移及倾斜度接近正常(P>0.05)。结论多数安氏Ⅱ类1分类错(牙合)患者的髁突运动轨迹有较稳定且可重复的特征;功能矫治对安氏Ⅱ类1分类错(牙合)患者的颞下颌关节功能调整有积极的作用。
Objective To record and analyze the characteristics of condyle movement before and after functional treatment in Angle class Ⅱ division 1 malocclusion ( Ⅱ^1 ) patients. Methods Twenty Angle I1 ' patients were included in the study and 20 Angle I patients without temporomandibular disorders symptoms served as controls. Computer aided diagnosis axiograph (CADIAX) was used to record the condyle movement in Angle Ⅱ^1 patients and that caused by functional appliance treatment during mouth opening and closing. Results The tracing were vertically displayed. Value Z[L: 2.21 (1.01) mm, R-1.12(1.02) mm ] and sagittal condylar inclination [ L : 12. 89 ( 9. 12 ) °, R : 12. 12 ( 8. 89 )° ] were increased significantly in Angle Ⅱ patients compared with those in control group ( P 〈 0.05 ). After functional treatment, the condyle movement in Angle Ⅱ^1 patients was close to normal (P 〉 0. 05 ) . Conclusions Typical characteristics of condyle movement were found in Angle Ⅱ^1 patients and it was stable and repeatable. Functional therapy had a positive effect on temporomandibular joint function in AngleⅡ^1 patients.
出处
《中华口腔医学杂志》
CAS
CSCD
北大核心
2007年第8期475-476,共2页
Chinese Journal of Stomatology