隐适美MA与Twin-block矫治安氏Ⅱ类骨性下颌后缩畸形的效果比较  

Comparison of the clinical effects of Invisalign? MA appliance and Twin-block appliance on the patients with skeletal class Ⅱ malocclusion

作　　者：曹伟清 林汤毅 吕冬 何强 CAO Weiqing;LIN Tangyi;LÜDong;HE Qiang(Department of Stomatology,Traditional Chinese Medicine Hospital of Changshu(Changshu New District Hospital),Changshu Jiangsu 215500;Nanjing Yuanhui Dental Clinic,Nanjing 210000,China)

机构地区：[1]常熟市中医院(常熟市新区医院)口腔科,江苏常熟215500 [2]南京元汇口腔门诊部,南京210000

出　　处：《临床与病理杂志》2022年第9期2206-2212,共7页Journal of Clinical and Pathological Research

摘　　要：目的:比较隐适美MA与Twin-block矫治器治疗骨性II类错颌的临床效果。方法:选择骨性Ⅱ类患者22例,年龄(12.02±1.61)岁。其中12例使用Twin-block矫治器矫治(Twin-block组),10例采用隐适美MA矫治(MA组)。对导下颌向前矫治前后头颅定位侧位片测量并进行统计学分析。结果:Twin-block组的∠L1-MP、∠SN-MP增加,而MA组无明显变化,组间差异有统计学意义(P<0.05);Twin-block组的∠L1-NB、 L1-NB距、 L6-MP距增加量大于M A组(均P <0.05);MA组的L1-MP距减少,而Twin-block组无明显变化,组间差异有统计学意义(P<0.05)。结论:MA和Twin-block均可促进下颌生长,改善侧貌。对于不希望下前牙唇倾增加或者不希望下颌顺时针旋转的患者,MA更加合适;对于低角患者,Twin-block更加合适。Objective: To compare the clinical effects of Invisalign? mandibular advancement(MA) appliance and Twin-block appliance on skeletal class Ⅱ malocclusion. Methods: We selected 22 children who were treated for skeletal Class Ⅱ malocclusion with an average of(12.02±1.61) years old. They were treated with Twin-block appliance(12 cases, Twin-block group) and Invisalign? MA(10 cases, MA group). The cephalometrics were taken before and a?ter the treatment, and the cephalometric data of 2 groups were analyzed. Results: Compared with MA group, L1-MP angle and SN-MP angle increase in Twin-block group, which have significant difference(P<0.05). The increase of L1-NB angle, L1-NB distance and L6-MP distance in the Twin-block group are more than that in the MA group and have significant difference(P<0.05). L1-MP distance decreases in MA group but not in Twin-block group, and there was significant difference between the 2 groups(P<0.05). Conclusion: Both MA and Twin-block can promote mandibular growth and improve lateral profile. If we don’t want to proline the lower incisors or increase the angle of mandibular plane, MA is a better choice for patients. Twin-block appliance is more suitable for patients with a lower angel of the mandibular plane.

关 键 词：下颌后缩 导下颌向前 隐适美MA TWIN-BLOCK矫治器 骨性Ⅱ类错颌 

分 类 号：R783.5[医药卫生—口腔医学]