Rodriguez Juan C, Suarez Fernando, Chan Hsun-Liang, Padial-Molina Miguel, Wang Hom-Lay
*Resident, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI. †Visiting Scholar, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI. ‡Adjunct Clinical Assistant Professor, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI. §Research Fellow, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI. ‖Professor and Director, Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI.
Implant Dent. 2014 Apr;23(2):155-61. doi: 10.1097/ID.0000000000000048.
The aims of this study were to analyze the success rate of mini-implants and miniscrews and to report the reasons behind them.
An electronic literature search from PubMed databases and a hand search in implant- and orthodontic-related journals were performed until December 31, 2011. Human clinical studies in English that reported temporary anchorage devices used for orthodontic purpose with at least 6 months follow-up were included. In addition, the minimal number of implants had to be at least 10. Implants placed in maxilla, mandible, and hard palate were included.
The initial search resulted in 847 articles, of which 46 were further evaluated. Finally, 29 studies were qualified and classified into 2 groups: implants placed in maxilla and mandible (group 1) and implants placed in hard palate (group 2). A meta-analysis performed for groups 1 and 2 showed 87.8% and 93.8% survival rate, respectively. In addition, the most common cause for implants failure was surgery-related factors.
Mini-implant survival rate is location dependent, with those placed in the palate showing higher success rates. In addition, failures most commonly occur because of surgery-related factors.
本研究旨在分析微型种植体和微螺钉的成功率，并报告其背后的原因。
截至2011年12月31日，我们在PubMed数据库中进行了电子文献检索，并在与种植和正畸相关的期刊中进行了手工检索。纳入了以英文发表的人类临床研究，这些研究报告了用于正畸目的的临时锚固装置，并至少随访6个月。此外，植入物的最小数量必须至少为10个。纳入了在上颌、下颌和硬腭植入的种植体。
初步检索得到847篇文章，其中46篇进行了进一步评估。最终，29项研究符合要求并分为两组：上颌和下颌植入的种植体（第1组）和硬腭植入的种植体（第2组）。对第1组和第2组进行的荟萃分析显示，生存率分别为87.8%和93.8%。此外，种植体失败的最常见原因是与手术相关的因素。
微型种植体的生存率取决于植入位置，植入腭部的成功率更高。此外，失败最常因与手术相关的因素发生。
