Evaluation of apical root resorption and alveolar bone changes in maxillary anteriors after space closure in patients treated with modified intrusion and retraction mechanics
试验速览
- 阶段
- 4 期
- 状态
- 招募中
- 发起方
- 入组人数
- 24
- 试验地点
- 1
- 主要终点
- To evaluate the external apical root resorption in the maxillary anterior teeth using cone
研究概览
简要总结
In this prospective study, the external apical root resorption and alveolar bone remodelling
in the maxillary anterior teeth will be evaluated after en-masse retraction of maxillary
anterior teeth with modified intrusion and retraction mechanics in fixed orthodontic patients.
The outcomes will be evaluated based on linear along with volumetric changes in the root and
changes in height and thickness of the alveolar bone.
Population- Patients with Class II Division 1 malocclusion
Intervention – En-masse retraction of maxillary anterior teeth with modified intrusion and
retraction mechanics
Comparator – Same group after retraction
Outcomes - Root resorption in maxillary anterior teeth measured in terms of changes in root
length, root volume and change in alveolar bone height and thickness.
Time period- 24 months
研究设计
- 研究类型
- Interventional
入排标准
- 年龄范围
- 16.00 Year(s) 至 35.00 Year(s)（—）
- 性别
- All
入选标准
- •1 Patients belonging to the age group of 16 to 35 years belonging to both sexes.
- •2 Patients with Angle’s Class II Division 1 malocclusion.
- •3 Patients requiring camouflage treatment by extraction of upper first premolars.
- •4 Overjet greater than 5mm and overbite 0 to 4 mm.
- •5 Average growth pattern Frankfort mandibular plane angle 22 to 28 degrees with standard deviation of 3 degree 6 Patients with no or minimal crowding in maxillary arch less than 3mm.
- •7 Patients requiring maximum anchorage during space closure.
- •8 Fully erupted permanent dentition except third molar.
- •9 Good oral hygiene.
排除标准
- •1 Patients with severe crowding in maxillary arch.
- •2 Patients requiring absolute anchorage where mini-implants may be desired.
- •4 Patients with any systemic disease or syndromes or any other craniofacial abnormalities.
- •5 Patient under medications that may affect orthodontic tooth movement.
结局指标
主要结局
To evaluate the external apical root resorption in the maxillary anterior teeth using cone
时间窗: Pre Retraction (T0)(Before space closure - 0 months ) | Post Retraction (T1)( After space closure- 12 months)
beam computed tomography taken pre (T0) and at the end of the space closure (T1) with
时间窗: Pre Retraction (T0)(Before space closure - 0 months ) | Post Retraction (T1)( After space closure- 12 months)
modified intrusion and retraction mechanics.
时间窗: Pre Retraction (T0)(Before space closure - 0 months ) | Post Retraction (T1)( After space closure- 12 months)
次要结局
- To evaluate change in buccal & palatal crestal bone height after completion of(retraction.)
研究者
Dr Vinay Kumar Chugh
All India Institute of Medical Sciences, Jodhpur