Effect of Extraction Versus Non-extraction Orthodontic Treatment on Vertical Facial Dimension: A Non-Randomized Clinical Trial
试验速览
- 阶段
- 不适用
- 入组人数
- 30
- 试验地点
- 2
- 主要终点
- Changes in Vertical Dimension (VD)
研究概览
简要总结
The aim of the current clinical trial was to evaluate the effects of premolar extractions compared with non-extraction orthodontic treatment on the skeletal vertical dimension of the face.
The null-hypothesis is that there is no difference in post-treatment skeletal vertical characteristics of normodivergent and hyperdivergent patients treated orthodontically with first premolar extractions compared with patients treated in non-extraction manner.
详细描述
The current protocol will be submitted for partial fulfillment of the PhD requirements in Faculty of Dentistry, Cairo University.
The trial will be conducted in the outpatient clinic of the Orthodontic Department, Faculty of Dentistry, Cairo University.
Primary examination and diagnosis of the patients seeking orthodontic treatment will be performed, to select a sample of the trial.
then, final diagnosis and planing of each participant will be performed by a trained orthodontists to be sure that all patients fallen with the inclusion criteria.
Interventions will be conducted with the same orthodontist, under supervision of orthodontic professors in the Orthodontic department, Cairo University.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
盲法说明
the outcome assessor will be masked about the group of the participant during the measuring the outcome ..
入排标准
- 年龄范围
- 11 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Normodivergent and hyperdivergent patients
- •Cases with moderate crowding.
- •Borderline cases which could be treated with extraction or non-extraction strategies
排除标准
- •Hypodivergent patients.
- •Cases with extremely sever crowding.
- •Patients with high caries index or periodontal problems.
- •Patients with systemic diseases, or syndromic conditions.
结局指标
主要结局
Changes in Vertical Dimension (VD)
时间窗: after 1year. Changes will be measured before the start of trial and at the end of space closing stage, which anticipated to be within 12 months of intervention
Vertical dimension of the face will be assessed by measuring a distances in millimeters between vertical points as ANS-Me (lower facial height), also it will be measured form angles in a degrees as angle SN/MP
次要结局
- Changes in Overbite(1 year . Changes will be measured before the start of trial and at the end of space closing stage, which anticipated to be within 12 months of intervention)
研究者
Hasan Abdullah Naji Hasan
Principal investigator
Cairo University