Department of Orthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, 510182, China.
Ophthalmology Department, First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510632, China.
Clin Oral Investig. 2023 May;27(5):2149-2162. doi: 10.1007/s00784-023-04881-y. Epub 2023 Feb 4.
To compare the effectiveness of micro-implant (MI) and conventional anchorage (CA) in vertical control during orthodontic extraction treatment of class II adults and adolescents after pubertal growth peak.
Literature search was conducted through Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, EMBASE, Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang Database, VIP, China Biology Medicine (CBM), and other sources, from inception to December 2021. Randomized clinical trials (RCTs) and controlled clinical trials (CCTs) were included. Mean differences (MDs) with 95% confidence intervals (CIs) were conducted. A meta-analysis concerning change of mandibular plane, vertical change of upper and lower molar, change of occlusal plane, SNB, chin position, and profile was carried out.
A total of 10,669 records were identified in the database search, and 19 studies (10 RCTs and 9 CCTs) were included in the final analysis. Compared with CA, MI significantly decreased mandibular plane angle and intruded upper molars. No significant difference was found in vertical change of lower molars, occlusal plane, SNB, chin position, and profile.
MI seems to be more effective than CA in vertical control during orthodontic extraction treatment of class II adults and adolescents after pubertal growth peak.
MI should be given priority when considering the vertical control of class II patients, which is beneficial to the counterclockwise rotation of mandible or at least prevention of deterioration of the profile.
比较微种植体（MI）和传统支抗（CA）在青春期生长高峰后成人和青少年 II 类拔牙矫治中垂直控制的效果。
通过 Cochrane 中央对照试验注册库（CENTRAL）、PubMed、EMBASE、Web of Science、中国知网（CNKI）、万方数据库、维普、中国生物医学文献数据库（CBM）等数据库进行文献检索，检索时限均从建库至 2021 年 12 月。纳入随机对照试验（RCT）和临床对照试验（CCT）。采用均数差（MD）及其 95%置信区间（CI）进行Meta 分析。对下颌平面角、上下颌磨牙垂直向变化、牙合平面、SNB、颏部位置和侧貌的变化进行Meta 分析。
数据库检索共获得 10669 条记录，最终纳入 19 项研究（10 项 RCT 和 9 项 CCT）进行分析。与 CA 相比，MI 可显著减小下颌平面角并内收上颌磨牙。两组间下颌磨牙垂直向变化、牙合平面、SNB、颏部位置和侧貌无显著差异。
MI 在青春期生长高峰后成人和青少年 II 类拔牙矫治的垂直控制中似乎比 CA 更有效。
在考虑 II 类患者的垂直控制时，应优先考虑 MI，这有利于下颌的逆时针旋转或至少防止侧貌恶化。
