Intermittent Vibrational Force and Orthodontic Tooth Movement: a Randomised Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 81
- 主要终点
- Orthodontic tooth movement (incisor alignment)
研究概览
简要总结
The aim of this study is to compare the clinical efficiency of conventional fixed appliance orthodontic treatment with that supplemented by the daily application of cyclic forces to the dentition via a removable (AcceleDent) vibrational appliance. The primary outcome measure is rapidity of tooth alignment; whilst secondary outcome measures include pain and discomfort during treatment, rapidity of orthodontic space closure, changes in arch dimensions and root length.
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
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 12 Years 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Subjects will be recruited from a sample of consecutive cases attending for routine fixed appliance orthodontic treatment with conventional pre-adjusted edgewise brackets that satisfy the following criteria: in the permanent dentition; a requirement for extraction of a premolar unit in each quadrant; incisor irregularity between 5-12 mm.
排除标准
- •no medical contraindications; no craniofacial anomalies or cleft lip/palate;
结局指标
主要结局
Orthodontic tooth movement (incisor alignment)
时间窗: 2-12 months from start
Irregularity (crowding) of the mandibular (lower) dental arch will be measured as total contact point displacement between the six canine and incisor teeth using digital calipers (150mm ISO 9001 electronic calliper, Tesa Technology, Renens, Switzerland; resolution ± 0.01mm) from stone dental casts. Initial crowding will be measured at T1 prior to the start of treatment. Irregularity will then be measured at T2 (at first archwire change) and the initial rate of orthodontic tooth movement calculated. Irregularity will then be measured at T3 (final alignment of the teeth) to calculate overall rate of alignment.
次要结局
- Discomfort during initial orthodontic tooth movement(1 week from start)
- Orthodontic space closure(6-30 months from start)
- Root resorption(6-12 months from start)