Cephalometric Changes in Pharyngeal Airway Dimensions After Functional Treatment With Twinblock Versus Myobrace Appliances in Developing Skeletal Class II Patients: A Randomized Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 26
- 试验地点
- 1
- 主要终点
- SNA
研究概览
简要总结
The goal of this clinical trial is to compare the pharyngeal airway changes after treatment with Myobrace and after treatment with Twinblock in developing skeletal Class II patients.
The main question it aims to answer is: Is the efficacy of the twin-block Vs Myobrace appliances in the improvement of pharyngeal airway dimensions in adolescents having skeletal Class II malocclusion with retrognathic mandible utilizing sagittal pharyngeal airway area measurements.
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)
入排标准
- 年龄范围
- 9 Years 至 12 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy children
- •9-12 Years
- •Skeletal Class II with mandibular defeciency and normal maxillary growth depending on clinical diagnosis and confirmed with lateral cephalometric x-reay readings ( ANB angle >4 and SNA angle <78)
排除标准
- •Previous Orthodontic treatment
- •Previous extractions
- •mandibular shifts
- •Severe Crowding
- •Anterior open bite
- •Any perioral habits
结局指标
主要结局
SNA
时间窗: Six months
Angle formed between points Sella, Nasion and A point and describes anteroposterior position of the maxilla relative to the anterior cranial base.
SNB
时间窗: Six months
Angle formed between points Sella, Nasion and B point and describes anteroposterior position of the mandible relative to the anterior cranial base.
Witts appraisal
时间窗: Six months
The linear distance between the perpendicular projections of points A and B over the functional occlusal plane.
FMA
时间窗: Six months
Angle formed between mandibular plane and Frankfort horizontal plane.
ANB
时间窗: Six months
Angle formed between points A, Nasion and B point indicating the skeletal relationship between the maxilla and the mandible.
Pharyngeal air way area measurement
时间窗: Six months
The upper border of Naso Pharyngeal air way area will be delineated by a line extending from the harmonium (H) to the posterior nasal spine. The lower extent of the NPAA will be traced by marking a line at the tip of the soft palate parallel to the Frankfort horizontal (FH) plane extending to the posterior wall of the pharynx. The OPAA and LPAA are differentiated by a line drawn at the level of the tip of epiglottis parallel to the FH plane to the posterior wall of the pharynx. The lower border of the LPAA is defined as a line drawn parallel to FH plane and passing through the anteroinferior most point (C5AI) of the fifth cervical vertebra. Area will be measured.
次要结局
未报告次要终点