T4K矫治器矫正早期安氏Ⅱ类1分类错的疗效及稳定性研究  

Clinical Effects and Stabilization of Treatment of Early Correction of Class II Division 1 Malocclusion with T4K Appliance

作　　者：张晓洁[1] 梁芮[1] 林楚如 

机构地区：[1]深圳市第二人民医院口腔科,广东深圳518035

出　　处：《口腔医学研究》2014年第11期1087-1091,1095,共6页Journal of Oral Science Research

摘　　要：目的：研究T4K矫治器矫正早期安氏Ⅱ类1分类错[牙合]畸形的临床疗效并评估疗效的稳定性。方法：选择9名患者（男3名,女6名,年龄7～12岁,平均年龄9.6岁）,临床检查为磨牙Ⅱ类关系,前牙深覆[牙合]、深覆盖。对9名患者采用T4K矫治器治疗12个月。矫正结束后5年回访,进行矫正前（T1）、矫正结束后（T2）以及矫正结束后5年（T3）的X线头影测量分析,探讨T4K矫正器治疗疗效的稳定性。结果：T2、T3,与T1相比,磨牙关系改善,患者SNA角、ANB角、〈U1-SN角、覆盖（mm）均显著减小（P〈0．01），SNB角、〈L1-MP角、〈U1-L1角、下颌平面角、上面高（mm）、下面高（mm）、下面高比例（％）均显著增大（P〈0．01）。T3与T2相比，磨牙中性关系稳定，患者ANB角、〈L1-MP角均显著减小（P〈0．01），SNB角、〈U1-L1角、下颌平面角、上面高（mm）、下面高（mm）、下面高比例（％）、覆盖（mm）均显著增大（P〈0．01）。结论：T4K矫正器作为一种预成的肌功能矫正器，能有效治疗替牙期及恒牙早期的安氏Ⅱ类1分类错[牙合]畸形，并且获得稳定疗效。Objective： To study the clinical effects and stabilization of early correction of class Ⅱ division 1 malocclusion with T4K appliance. Methods： Nine patients （ 3 male, 6 female, age from 7-11, average 9.6） who had class Ⅱ division 1 malocclusion with deep overbite and deep overjet were treated with T4k appliance. Head cephalometric data of pretreatment（T1）, posttreatment （T2）and 5 years after treatment （T3） were measured to analyse the difference. Results： Compared with T1 , the SNA, ANB, 〈U1-SN, and overjet of both T1 and T2 were significantly smaller, and the SNB, 〈L1-MP, 〈U1-L1, MP-FH, N-ANS, ANS-Me, and ANS-Me/N-Me definitely increased as well. The ANB, 〈L1- MP of T3 were significantly smaller than those of T2. , while the SNB, 〈U1-L1, MP-FH, N-ANS, ANS-Me, ANS-Me/N-Me and overjet were significantly larger. Conclusion： As a functional appliance, T4K played an important role on the early correction of class Ⅱ division 1 malocclusion in the permanent dentition and early permanent dentition with great stabilization.

关 键 词：T4K矫正器 早期矫正 安氏Ⅱ类1分类错[牙合]畸形 功能矫正器 

分 类 号：R783.5[医药卫生—口腔医学]