植入上颌结节的微型螺钉的失败率。
Failure rates of miniscrews inserted in the maxillary tuberosity.
作者信息
Azeem Muhammad, Haq Arfan Ul, Awaisi Zubair Hassan, Saleem Muhammad Mudassar, Tahir Muhammad Waheed, Liaquat Ahmad
机构信息
Faisalabad Medical University, Punjab Medical College - Dental Section, Department of Orthodontics (Faisalabad, Pakistan).
De'Montmorency College of Dentistry, Department of Orthodontics (Lahore, Pakistan).
出版信息
Dental Press J Orthod. 2019 Nov 11;24(5):46-51. doi: 10.1590/2177-6709.24.5.046-051.oar. eCollection 2019.
INTRODUCTION
Anchorage conservation in orthodontics has always been a challenge.
OBJECTIVE
The aim of this current study was to find out the failure rate of miniscrews inserted in the maxillary tuberosity (MT) region.
METHODS
This pilot study consisted of 40 patients (23 female, 17 male; mean age = 20.1±8.9 years) that had received 60 MT miniscrews for orthodontic treatment. Clinical notes and pictures were used to find out the primary outcome of miniscrew failure. Independent failure factors were also investigated. Logistic regression analysis was done for predictor's relation with MT miniscrews failure.
RESULTS
There was no significant correlation in failure rate according to various predictor variables, except for miniscrews installed by lesser experienced operators, which showed significantly more failure. The odds ratio for miniscrew failure placed by inexperienced operators was 4.16.
CONCLUSION
A 26.3% failure rate of mini-implants inserted in the MT region was observed.
引言
正畸治疗中的支抗控制一直是一项挑战。
目的
本研究旨在探究植入上颌结节（MT）区域的微螺钉的失败率。
方法
这项初步研究纳入了40例患者（23名女性，17名男性；平均年龄 = 20.1±8.9岁），这些患者接受了60枚用于正畸治疗的MT微螺钉。通过临床记录和图片来确定微螺钉失败的主要结果。还对独立的失败因素进行了调查。对预测因素与MT微螺钉失败之间的关系进行了逻辑回归分析。
结果
根据各种预测变量，失败率没有显著相关性，但经验较少的操作者植入的微螺钉失败率显著更高。经验不足的操作者植入微螺钉失败的比值比为4.16。
结论
观察到植入MT区域的微型种植体失败率为26.3%。
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