Effect of Skeletally Anchored Reversed PowerScope Appliance in Orthodontic Treatment of Patients With Class III Malocclusion: A Prospective Clinical Study
试验速览
- 阶段
- 不适用
- 入组人数
- 16
- 试验地点
- 2
- 主要终点
- Evaluation soft tissue parameters
研究概览
简要总结
the PowerScope appliance is found to be efficient for the treatment of class II malocclusion. Accordingly, it appears valuable to investigate the efficiency of skeletally anchored powerScope in the treatment of class III malocclusion
详细描述
The PowerScope is the latest innovation in the treatment of Class II malocclusion which is a direct derivative of the Herbst Type II appliance. Dr. Andy Hayes worked in conjunction with American Orthodontics to develop PowerScope in 2016. This appliance supports intermaxillary wire-to-wire installation via a nut and hexagonal screw. A ball and socket joint is used to maximize lateral movement while improving patient comfort. The appliance is made up of a telescopic mechanism made up of an inner shaft/push rod, middle and outer tubing, and a spacer between the middle and outer tubing. A nickel-titanium (NiTi) spring provides a constant 260 g force. According to the present knowledge no studies regarding treatment outcomes of comprehensive fixed appliance treatment combined with the PowerScope in Class ΙII patients have been reported.
The introduction of temporary anchorage devices (TADs) has made it possible to achieve absolute anchorage control in daily clinical orthodontic practice when used in conjunction with fixed functional appliances. However, it appears that there is no evidence in the literature supporting the clinical effectiveness of miniscrew- anchored fixed functional appliances for the treatment of Class III malocclusion.
According to the current available literature, the PowerScope appliance is found to be efficient for the treatment of class II malocclusion. Accordingly, it appears valuable to investigate the efficiency of skeletally anchored powerScope in the treatment of class III malocclusion.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 主要目的
- Screening
- 盲法
- None
入排标准
- 年龄范围
- 14 Years 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- •Orthodontic cases with severe crowding of upper and lower anterior segment that require extraction treatment approach.
- •Patients with a blocked-out tooth that will not allow for placement of the bracket at the initial bonding appointment.
结局指标
主要结局
Evaluation soft tissue parameters
时间窗: 1.5 years
amount of soft tissue change by cephalometric
Evaluation of different dentoskeletal cephalometric parameters
时间窗: 1.5 years
amount of dentoskeletal change by cephalometric
次要结局
未报告次要终点
研究者
Ahmed Mohamed Ibrahim Sallam
principal investigator
Al-Azhar University