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A new method to evaluate the positional stability of a self-drilling miniscrew
Chen, G.1; Chen, S.1; Zhang, X. Y.1; Jiang, R. P.1; Liu, Y.1; Shi, F. H.2; Xu, T. M.1
关键词Cone-beam Computed Tomography Miniscrew Orthodontic Treatment Stability
刊名ORTHODONTICS & CRANIOFACIAL RESEARCH
2015-08-01
DOI10.1111/ocr.12065
18期:3页:125-133
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Dentistry, Oral Surgery & Medicine
研究领域[WOS]Dentistry, Oral Surgery & Medicine
关键词[WOS]HEAD FILM MEASUREMENTS ; ORTHODONTIC FORCES ; REMAIN STATIONARY ; MINI-IMPLANTS ; ANCHORAGE ; MAXILLARY ; RELIABILITY ; SUPERIMPOSITION ; REGISTRATION ; ARCH
英文摘要

Structured Abstract

ObjectivesTo evaluate the positional stability of miniscrews during orthodontic treatment change in cone-beam computed tomography (CBCT).

Setting and Sample PopulationTwenty adult volunteers were enrolled.

MethodsIn all participants, at least two maxillary first premolars were extracted because of protrusion. Each volunteer received six miniscrews in the maxilla, including two loaded miniscrews to retract anterior teeth and four unloaded miniscrews. CBCT scans were obtained at the beginning of space closure (T1) and approximately 11.8months later (T2). Three-dimensional miniscrew models were constructed at T1 and T2, and the central axes were calculated using a principal component analysis (PCA) technique. Finally, we measured and compared the angle change of all the miniscrews from T1 to T2.

ResultsThe angle change values of the unloaded and loaded miniscrews were 1.641.25 degrees and 1.67 +/- 1.15 degrees, respectively. No significant differences in the angle change were observed.

ConclusionCone-beam computed tomography images revealed both the unloaded and loaded miniscrews to be positionally stable during en-masse retraction in this study.

语种英语
WOS记录号WOS:000357522300001
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/58048
专题北京大学口腔医学院_牙周科
作者单位1.Peking Univ, Sch & Hosp Stomatol, Dept Orthodont, Beijing 100081, Peoples R China
2.Peking Univ, Key Lab Machine Percept, MOE, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Chen, G.,Chen, S.,Zhang, X. Y.,et al. A new method to evaluate the positional stability of a self-drilling miniscrew[J]. ORTHODONTICS & CRANIOFACIAL RESEARCH,2015,18(3):125-133.
APA Chen, G..,Chen, S..,Zhang, X. Y..,Jiang, R. P..,Liu, Y..,...&Xu, T. M..(2015).A new method to evaluate the positional stability of a self-drilling miniscrew.ORTHODONTICS & CRANIOFACIAL RESEARCH,18(3),125-133.
MLA Chen, G.,et al."A new method to evaluate the positional stability of a self-drilling miniscrew".ORTHODONTICS & CRANIOFACIAL RESEARCH 18.3(2015):125-133.
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