快速扩弓合并前方牵引矫治上颌发育不足的临床研究  

Clinical study of protraction headgear combined with rapid palatal expansion in correction of skeletal class Ⅲ malocclusion

作　　者：任冬宜 REN Dongyi(Department of Stomatology,Anqing First People's Hospital,Anqing,Anhui,246003,China)

机构地区：[1]安徽医科大学附属安庆第一人民医院口腔科,240003

出　　处：《中国中西医结合耳鼻咽喉科杂志》2022年第4期280-282,共3页Chinese Journal of Otorhinolaryngology in Integrative Medicine

摘　　要：目的研究在青少年早期骨性反合畸形中应用螺旋扩弓器合并前方牵引的治疗后对牙列和上下颌骨生长和位置的改变。方法对22例上颌发育不足的反合畸形患者应用螺旋扩弓器合并前方牵引治疗,对治疗前后的头颅定位侧位片进行测量分析。结果治疗后SNA、ANB、MP-SN、NA-PA、U1-SN、V-A、Ptm'-A'及前下面高增加,SNB、L1-MP、PP-SN减小,C0-G0-Gn、Go-Po、Ar-Pg无显著性变化。结论治疗后上颌骨矢状向近中生长显著,上颌骨整体位置前移,PP平面的向上向后旋转;下颌骨顺时针旋转,下颌骨长度未见明显增加;上颌切牙有轻度唇倾,下颌切牙呈现代偿性舌倾。Objective To study skeletal and dental changes in correction of skeletal classⅢmalocclusion by protraction headgear combined with rapid palatal expansion(RPE)in the mixed dentition.Methods A total of 10 patients with skeletal anterior crossbite were selected and treated with protraction headgear combined with rapid palatal expansion in the mixed dentition.Lateral cephalometric roentgenograms were taken before and after treatment,and were analysed to evaluate the changes.Results After treatment,SNA,ANB,NA-PA,MP-SN,Ul-SN,V-A and Ptm-A increased significantly,and SNB、PP-SN、Ll-MP decreased significantly,but C0-G0-Gn and Ar-Pg have no significant change.Conclusion After protraction the maxillary moves and grow forward accompanied with counterclockwise rotation of palatal plane,and the mandible rotate backward and downward and its growth were restrained temporarily.In addition,the upper incisor incline labially and the lower incisor incline lingually,which can help to conceal the deficiency.

关 键 词：前方牵引 快速扩弓 上颌发育不足 

分 类 号：R783.5[医药卫生—口腔医学]