Comparative evaluation of distal movement and external apical root resorption of maxillary canines bonded with a combination of zinc oxide-tin oxide nanoparticle coated and non-coated ceramic brackets- a split-mouth randomized clinical trial
试验速览
- 阶段
- 不适用
- 状态
- 尚未招募
- 发起方
- 入组人数
- 13
- 试验地点
- 1
- 主要终点
- Rate of canine retraction
研究概览
简要总结
Comparative evaluation of distal movement and external apical root resorption of maxillary canines bonded with a combination of zinc oxide-tin oxide nanoparticle coated and non-coated ceramic
brackets- a split-mouth randomised clinical trial.
Aim: To evaluate the distal movement and external apical root resorption of maxillary canines bonded with a combination of zinc oxide-tin oxide nanoparticle-coated and non-coated ceramic brackets.
Sample size:!3 patients
Split mouth study
Group 1- 13 quadrants- zinc oxide-tin oxide nanoparticle coated brackets
Group 2- 13 quadrants- non-coated ceramic brackets
Methodology: The horizontal distance is to be calculated between the pre-retraction and post-retraction values.
The rate of canine retraction is to be calculated by dividing the amount of canine retraction by the time taken for the retraction.
External apical root resorption is evaluated with pre and post-CBCTs.
研究设计
- 研究类型
- Interventional
- 分配方式
- Permuted block randomization, variable
- 盲法
- Participant and Outcome Assessor Blinded
入排标准
- 年龄范围
- 18.00 Year(s) 至 35.00 Year(s)（—）
- 性别
- All
入选标准
- •Subjects requiring individual canine retraction during fixed orthodontic treatment, Patients with a full complement of healthy non- carious permanent teeth, canines and first premolars nearly in good alignment, a treatment plan for extraction of maxillary first premolars.
排除标准
- •Debonding of brackets from canines or anchorage teeth, removal of retracting coil springs during treatment, irregular followâ€up visits of patients and patients with asymmetrical arches were excluded from the study.
- •Subjects with congenital enamel defects or hypoplasia of partially erupted teeth, physically or mentally handicapped, and craniofacial syndromes.
结局指标
主要结局
Rate of canine retraction
时间窗: 4 weeks, 8 weeks and 12 weeks
次要结局
- canine rotation, tipping of canine(3 months)