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What are the best materials to use for the first arch wire in orthodontic treatment?
Evidence-Based Dentistry Pub Date : 2019-06-01 , DOI: 10.1038/s41432-019-0022-9
Carlos Flores Mir 1
Affiliation  

Data sources Six electronic databases/registries including Medline, Cochrane Central Register of Controlled Trials (CENTRAL), Cochrane Oral Health's Trials Register, Embase, World Health Organization International Clinical Trials Registry Platform and The US National Institutes of Health Trials Registry (ClinicalTrials.gov) were searched up to October 2017. No restrictions of language or publication date were set.Study selection Only randomised controlled trials (RCTs) assessing the efficiency of initial arch wires to align teeth with fixed orthodontic braces in either or both upper and lower arches.Data extraction and synthesis Two reviewers abstracted data independently. Risk of bias was assessed using the Cochrane Collaboration Risk of Bias tool. Rate of alignment was considered the main outcome. Root resorption and pain level were considered adverse effects. Meta-analysis was performed when possible. Results Twelve RCTs involving 799 participants were included. Three studies were judged at high RoB, six were unclear and three were at low RoB. There was insufficient evidence to determine if there is a difference in the alignment rate between Multistrand stainless steel (MSS) and superelastic nickel-titanium (SNT) arch wires (mean difference (MD) -7.5 mm per month, 95% confidence interval (CI) -26.27 to 11.27; one study), between MSS and thermoplastic NiTi (TNT) arch wires, between conventional Niti (CNT) and TNT arch wires, between CNT and TNT arch wires and between SNT and TNT arch wires. In regards to pain level only two comparisons were assessed (MSS vs. SNT and SNT vs. TNT). The first one did not show meaningful differences while in the second insufficient evidence was identified. Conclusions In general terms there is insufficient evidence that any particular material is clinically superior to any other in regards to alignment rate, pain or root resorption.

中文翻译:

正畸治疗中使用第一根弓丝的最佳材料是什么?

数据源六个电子数据库/注册表,包括Medline,Cochrane对照试验中央注册系统(CENTRAL),Cochrane口腔健康试验注册系统,Embase,世界卫生组织国际临床试验注册平台和美国国立卫生研究院临床注册系统(ClinicalTrials.gov)。检索到2017年10月。没有语言或出版日期的限制。研究选择只有随机对照试验(RCT)评估初始弓丝将上下弓中的一个或两个中的固定正畸牙矫正牙齿的效率。提取和综合两名审稿人独立提取数据。使用Cochrane协作偏见风险工具评估了偏见风险。对齐率被认为是主要结局。根吸收和疼痛水平被认为是不利影响。可能时进行荟萃分析。结果纳入了12项RCT,涉及799名参与者。判定三项研究的RoB为高,六项不清楚,三项为低RoB。没有足够的证据来确定多股不锈钢(MSS)和超弹性镍钛(SNT)弓丝之间的对准率是否存在差异(平均差异(MD)每月-7.5毫米,置信区间为95%(CI) )-26.27至11.27;一项研究),在MSS和热塑性NiTi(TNT)弓丝之间,在常规Niti(CNT)和TNT弓丝之间,在CNT和TNT弓丝之间以及在SNT和TNT弓丝之间。关于疼痛程度,仅评估了两个比较(MSS vs. SNT和SNT vs. TNT)。第一个没有显示出有意义的差异,而第二个没有发现足够的证据。结论总的来说,没有足够的证据表明任何特定的材料在对齐率,疼痛或牙根吸收方面在临床上都优于其他任何材料。
更新日期:2019-11-18
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