Effect of Incremental Versus Maximum Bite Advancement in Class II Subjects Using Twin Block Appliance : Randomized Clinical Trials
试验速览
- 阶段
- 不适用
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- To asses patient compliance
研究概览
简要总结
The aim of this study is to compare to different protocols to treat Class II malocclusion in growing subjects using the twin block appliance
详细描述
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Patients will be clinically and radio-graphically examined for eligibility
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Eligible patients will be randomly assigned to one of two groups:
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Control Group: Twin Block Appliance fabricated to Maximum Bite Advancement group
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Intervention Group: Twin Block Appliance fabricated for Incremental Bite Advancement group
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Records will be taken and impressions will be made and poured. In the control group, bite registration will be made with maximum mandibular advancement. In the intervention group, bite registration is made to habitual bite to make a modified twin block.
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Patients will be recalled every 6 weeks for 8 months for monitoring and reactivation of the appliance.
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
Assessor will carry out measurements blindly on pre-operative and post-operative radio-graphs
入排标准
- 年龄范围
- 9 Years 至 13 Years（Child）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Growing Female Patient
- •Skeletal Class II Malocclusion due to deficient mandible
- •Overjet of 7 to 10 mm
- •Short or normal vertical facial pattern
- •No previous orthodontic nor orthopedic treatment
排除标准
- •Syndromes or Chronic Illness
- •Skeletal Class II Malocclusion due to excessive maxilla
- •Vertical skeletal growth pattern
结局指标
主要结局
To asses patient compliance
时间窗: 8 months
patient will answer a questionnaire at end of treatment
To asses Skeletal and dentoalveolar changes in Mandible
时间窗: 8 Months
Cone Beam CT will be taken before and after active treatment, 3D Cephalometric analysis will be conducted on the Cone Beam to asses Skeletal and Dentoalvoelar changes in mandible. - changes that will be assesed include ( mandibular base length / mandibular antero posterior position in relation to cranial base/ Condylar position / lower incisor inclination to mandibular plane)
次要结局
- To asses Skeletal and dentoalveolar changes in Maxilla(8 months)
研究者
Khaled Mohamed Ali Hussein
Post Graduate Student, Department of Orthodontics, Cairo University
Cairo University