Relapse and Failure Rates Between CAD/CAM and Conventional Fixed Retainers: A 2-year Follow-up of a Randomized Controlled Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 43
- 试验地点
- 1
- 主要终点
- Change in Little's Irregularity Index (LII)
研究概览
简要总结
The aim of this study was to compare the differences in relapse and failure rates in patients treated with fixed retainers (FRs) using Computer-Aided Design/Computer-Aided Manufacturing technology, lab-based technique, and chairside method.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 13 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •completion of comprehensive orthodontic treatment
- •class I molar and canine relationships
- •indication for a fixed retainer on the mandibular anterior teeth.
- •no extractions done as part of their treatment.
- •Treatment with preadjusted edgewise appliance.
排除标准
- •refusal to participate
- •refusal to have fixed retainers
- •poor oral hygiene
- •non-compliance
研究组 & 干预措施
CAD/CAM group
干预措施: Computer Aided Design/ Computer Aided Manufacturing Retainers (Other)
Lab group
干预措施: Lab-based Retainers (Other)
Chairside group
干预措施: Chairside Retainers (Other)
结局指标
主要结局
Change in Little's Irregularity Index (LII)
时间窗: 2 years
ICW was measured on the Meshlab software using the 3D ruler measurement tool. Pre-treatment, post-treatment, and post-retention measures were recorded and any change in the LII was considered relapse.
Change in intercanine width (ICW)
时间窗: 2 years
ICW was measured on the Meshlab software using the 3D ruler measurement tool. Pre-treatment, post-treatment, and post-retention measures were recorded and any change in the ICW was considered relapse.
次要结局
未报告次要终点
研究者
Nourhan M.Aly
Assistant Lecturer of Dental Public Health
University of Alexandria