Mini-twinblock在安氏Ⅱ类1分类错中的功能矫形应用  

Functional orthopedic application of mini-twinblock appliance in the treatment of class Ⅱ division 1 malocclusion

作　　者：曾红梅[1] 周学军[1] 

机构地区：[1]安徽医科大学第一附属医院口腔科,合肥230022

出　　处：《安徽医科大学学报》2007年第1期93-96,共4页Acta Universitatis Medicinalis Anhui

摘　　要：目的研究Mini—twinblock在安氏Ⅱ类1分类错[牙合]功能矫形中应用特点及引起的颌面软硬组织变化。方法运用Mini—twinblock功能矫治器对23例6～13岁以下颌骨发育不足或功能后缩为主的安氏Ⅱ类1分类错[牙合]患者进行治疗。每病例治疗前进行常规临床检查、功能分析、拍摄头颅定位侧位片、曲面断层片及手腕骨X线片。治疗后拍摄头颅定位侧位片，对治疗前后头颅定位侧位片进行软硬组织项目测量，统计学分析。结果治疗前后SNB、ANB、u1．SN角、U1-L1角、NLA、H角、Co—Gn、Co—Go、U1-PP、L6-MP、UL—E、LL—E差异有显著性；SNA、IMPA、FMA、U6-PP、L1-MP差异无显著性。结论Mini—twinblock对混合牙列期、恒牙列早期以下颌骨发育不足或功能后缩为主的安氏Ⅱ类1分类患者功能矫形治疗，可促进下颌生长，有效改善上下颌间关系及颌面侧貌。Objective To investigate the functional orthopedic characters of Mini-twinblock appliance in the treatment of Class 11 division 1 malocclusion and changes in the craniofacial soft and hard tissues profiles. Methods Twenty-three Class 11 division 1 patients with deficiencies of mandibular development and function aged 6 - 13 years were included into this study. There were 10 boys and 13 girls. Routine clinical evaluation, function analysis, latral cephalograph, panoramic and left hand and wrist radiographs were taken for each patient before treatment. Lateral cephalograph was taken after treatment. Soft and hard tissues measurements of cephalometrics before and after treatment. The Student T test was applied to the data. Results After treatment of mini-twinblock, the SNB and ANB angles, Co-Gn, Co-Go, L6-MP, UL-E, LL-E were special significant different; the U1 -SN, U1 -L1, NLA and H angles were significant different;the SNA, IMPA and FMA angles, U6-PP, L1-MP were not significant different. Conclusion Functional orthopedic application of Mini-twinblock treatment is effective on improvement of facial balance in Class 11 division 1 patients with deficiencies of mandibular development and function in the mixed or early permanent dentition stage.

关 键 词：安氏Ⅱ类 矫形外科学 矫正装置 

分 类 号：R68[医药卫生—骨科学]