Effect of Archwire Gauge on the Rate of Canine Retraction in Adults: A Randomized Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 18
- 试验地点
- 1
- 主要终点
- rate of canine retraction
研究概览
简要总结
trial will be done to evaluate the effect of archwire gauge on the rate of canine retraction, canine tip and torque, root resorption and loss of anchorage in maxillary dental protrusion cases requiring first premolars extraction.
详细描述
Three working archwires of different gauges will be used during canine retraction; st.st 0.019×0.025" as a comparator, st.st 0.016×0.022" and st.st 0.017×0.025" wires as interventions. after levelling and alignment till reaching the working archwire, it will be left in place for a month then maxillary first premolars will be extracted and base line records will be taken(digital models, digital periapical radiographs and panorama). digital models will be taken monthly to measure rate of canine retraction for 6 months. after 6 month evaluation of anchorage loss, change in canine tip and torque will be done on last obtained digital model , panorama will be taken to evaluate the change in canine tip and digital periapical radiograph will be taken and compared with the preretraction radiograph to evaluate amount of root resorption.
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)
盲法说明
The outcome assessor is not informed about the gauge of the wire used for patients
入排标准
- 年龄范围
- 16 Years 至 26 Years（Child, Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Adult females (age range 18-28 years old).
- •Maxillary dental protrusion indicating first premolars extraction.
- •Full permanent dentition (not necessitating third molars).
排除标准
- •Patients having systemic diseases or on medications that would affect tooth movement.
- •Active periodontal disease or obvious bone resorption in maxillary arch.
- •Patients with habits that are detrimental to dental occlusion (thumb sucking, tongue thrusting ... etc.).
- •Previous orthodontic treatment.
- •Missing teeth.
结局指标
主要结局
rate of canine retraction
时间窗: 6 months
the distance that canine moved every month
次要结局
- loss of molar anchorage(6 months)
- change in canine torque(6 months)
- amount of canine root resorption(6 months)
- change in canine tip(6 months)
研究者
Aml Saeed Mohamed Abdel qader
masters degree student
Cairo University