Dentoalveolar and Skeletal Changes Associated With a Statically Determinate Force System in the Closure of Anterior Open Bite in Adults: A Single-arm Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 23
- 试验地点
- 2
- 主要终点
- angular and vertical linear effects on incisors
研究概览
简要总结
The aim of the current study was to evaluate and quantify the cephalometric changes produced by maxillary and mandibular extrusion arches in closure of anterior open bite in non-growing patients.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 17 Years 至 30 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Adult patients with anterior open bites more than 1 mm, permanent dentition except for the third molars which were extracted if erupted
排除标准
- •Frankfort to mandibular plane angle > 40
- •congenital craniofacial malformations or temporomandibular joint disorders,
- •patients with severe gum show during smiling or increased incisal show at rest.
结局指标
主要结局
angular and vertical linear effects on incisors
时间窗: up to 6 months
Extrusion of upper and lower incisors measured from: incisal edge, centroid point and apex to the palatal and mandibular planes for the upper and lower incisors respectively. Angles between long axis of upper incisor to SN plane and palatal plane, Angle between long axis of lower incisor and mandibular plane using lateral cephalometric xray
angular and vertical linear effects on first molars
时间窗: up to 6 months
For the first molars: Angular measurements between the long axis of the measuring jigs and the palatal plane and mandibular plane for the upper and lower molars, respectively. Vertical measurements: perpendicular vertical distance from the measuring jigs to the palatal and mandibular planes for the upper and lower molars, respectively, using lateral cephalometric xray.
次要结局
- change in the SN' to Mandibular plane angle(up to 6 months)
- change in the palatal to Mandibular plane angle(up to 6 months)
- change in the Anterior facial height(up to 6 months)
研究者
Tasnim Yousry
Demonstrator of orthodontics
Alexandria University