Effects of Micro-osteoperforations on the Upper Incisors' Retraction: a Randomized Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 37
- 试验地点
- 2
- 主要终点
- Space closure
研究概览
简要总结
This clinical trial evaluated the efficacy of micro osteoperforations in accelerating the retraction of maxillary incisors.
详细描述
This single-centered randomized clinical trial evaluated the effects of micro-osteoperforations in the retraction of maxillary incisors in patients who required the extraction of the first premolars to correct malocclusion. The canine retraction was performed in a previous step. The possible effects of micro-osteoperforantions in the following parameters were evaluated in the upper arch: anteroposterior incisors and first molars displacement, space closure, inclination and length of central incisors.
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
- 16 Years 至 40 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •both male and female subjects
- •16 or more years old
- •orthodontic need of upper incisors extractions
- •presence of all upper permanent teeth with exception of the third molars.
排除标准
- •diseases and medications that were likely to affect bone biology
- •pregnancy
- •poor oral hygiene
- •previous orthodontic treatment
- •evidence of bone loss
- •active periodontal disease
- •syndromes or cleft patients
- •severe crowding or Class II malocclusion (Pg-Nper > 18 mm, ANB > 7º, SN-GoGn > 38º e overjet > 10 mm).
结局指标
主要结局
Space closure
时间窗: Up to 4 months
The space closure was assessed by the distance between the most menial point of the medial surface of the canine to the most distal point of the distal surface of the lateral incisor.
Anteroposterior displacement of the upper incisors
时间窗: Up to 4 months
The anteroposterior displacement of the upper incisors was assessed on superimposed digital models through the distance of points on the incisal edge and palatal cervical margin of these teeth to a coronal reference plan created on the initial CBCT scan.
次要结局
- Changes of the inclination of the central incisors(Up to 4 months)
- Changes of the length of the central incisors(Up to 4 months)
- First molars anchorage loss(Up to 4 months)