The Efficacy of Surgical Exposure With Alveolar-decortication vs. Conventional Surgical Exposure to Reduce Treatment Time for Orthodontic Alignment of Palatally Impacted Canines
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 30
- 试验地点
- 2
- 主要终点
- Velocity of tooth movement
研究概览
简要总结
The purpose of this pilot clinical trial is to evaluate whether alveolar-decortication has the potential to reduce orthodontic treatment time following surgical exposure of palatally impacted canines.
详细描述
Purpose:
Upper permanent canines frequently become impacted (2%), which prevents their normal eruption (Brin et al, 1986. Ericson and Kurol, 1986). The upper canine may become impacted palatally (61%) or buccally (4.5%) (Stivaros and Mandall, 2000).
One of the treatment options for impacted canines is to surgically expose the canine tooth and to align it using orthodontic appliances. A bracket is attached to the tooth at the time of surgery. The tooth is then aligned using orthodontic forces.
Alveolar-decortication is also referred to as corticotomy-assisted orthodontics (Fischer, 2007). The technique involves exposure of alveolar bone and partial decortication of the cortical plates followed by primary flap closure.
It is believed that this alternative surgical technique reduces the time taken to orthodontically align teeth; previous case reports and preliminary studies report reductions by 28% to 80% in treatment time (Fischer, 2007. Wilcko et al, 2001).
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, Outcomes Assessor)
入排标准
- 年龄范围
- 10 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients at Birmingham Dental Hospital.
- •Patients with a palatally impacted canine, awaiting surgical exposure.
- •Patients with bilateral impacted canines may be included; in these cases both canines will be treated using the same surgical technique determined by allocation into either the test or control group.
- •Informed consent gained.
排除标准
- •History of periodontal disease.
- •Radiographical evidence of pathology associated with the impacted canine.
- •Patients already participating in a research study.
结局指标
主要结局
Velocity of tooth movement
时间窗: 6-8 weeks
The velocity of movement of the canine tooth will be recorded, from the start (buried) position until it is in the line of the arch. Measurements will be taken at each orthodontic appointment, usually 6-8 weeks apart throughtout treatment. Distance will be measured with the use of linear measurements, impressions and clinical photographs.
次要结局
- Time for alignment(approx. 2 years.)
- Total orthodontic treatment time(approx. 2.5 years.)
- Adverse effects of surgery(approx. 2.5 years.)
- Duration of surgery(1 day)
研究者
Mary Alice Bussell
SpR in orthodontics
University of Birmingham