The Effectiveness of Minimally-invasive Corticotomy-assisted Orthodontic Treatment of Palatally Impacted Canines in Terms of Treatment Duration and Dentoalveolar Changes Compared to the Traditional Method: A Randomized Controlled Trial.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 46
- 试验地点
- 2
- 主要终点
- Total treatment time
研究概览
简要总结
The time required for orthodontic traction of impacted canines after surgical exposure is a particularly troubling clinical problem because it prolongs the orthodontic treatment duration. During traction process, several complications could result in alveolar bone loss, root resorption of the adjacent teeth, ankylosis, discoloration, loss or vitality and gingival recession. Accordingly, and due to the lack of studies concerned with accelerating the traction movement of the impacted canines, we conducted this study to evaluate the effectiveness of some surgical interventions (corticotomy and Piezocision) in increasing the rate of orthodontic traction movement. We also aimed to evaluate dentoalveolar changes associated with the use of such accelerating procedures compared with the conventional traction method.
详细描述
Adult patients with unilateral palatally impacted canines will be included in this study. One of patient groups will be treated using fixed orthodontic appliances in combination with some accelerated surgical interventions, while the second patient group will be treated using the traditional treatment method. The velocity of traction movement will be assessed in the two groups. The differences between the two groups in terms of the total treatment duration and the traction duration will be evaluated.
Dentoalveolar changes associated with the use of such accelerating procedures will be assessed by several variables studied on cone-beam computed tomography (CBCT) images. In this study, two groups are going to be evaluated: (1) patients treated in the traditional manner, (2) patients will undergo corticotomy-assisted traction of the impacted canines.
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
- 18 Years 至 28 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients aged 18 to
- •Unilateral palatally or mid-alveolar upper impacted canine.
- •The impacted canine crown not exceeding the middle of the lateral incisor root.
- •Absence of root resorption of the lateral incisors.
- •No contact between the canine crown and the lateral incisor root.
- •Individuals not previously receiving orthodontic treatment.
- •No use of any medications that may affect the orthodontic movement.
排除标准
- •Bilateral or buccal canine impaction cases.
- •More than 45-degree angle between the canine's longitudinal axis and the vertical facial plane.
- •Any medical condition that prevents oral surgery.
- •Oral structural abnormality that is inherited or congenital.
结局指标
主要结局
Total treatment time
时间窗: At the end of the orthodontic treatment which is expected to happen between 15 to 24 months.
The time between the bonding of the fixed orthodontic appliance until it is removed.
Velocity of the traction movement
时间窗: At the end of the traction stage which is expected to happen within 6 to 8 months
Calculated by dividing the depth of impaction, which defined as the distance from the impacted canine cusp tip to the occlusal plane, by the traction duration
Traction time
时间窗: At the end of the traction stage which is expected to happen within 6 to 8 months
The interval between the onset of orthodontic traction on the impacted canine and the emergence of half of its clinical crown.
次要结局
- Change of the root length of the adjacent lateral incisor((1) The first assessment time is at one day before the beginning of orthodontic treatment and the (2) second assessment time is at one week following the end of the orthodontic treatment)
- Bone support ratio of the contralateral naturally erupting canine(At the end of the orthodontic treatment which is expected to happen between 15 to 24 months.)
- Bone support ratio of the adjacent first premolar(At the end of the orthodontic treatment which is expected to happen between 15 to 24 months.)
- Bone support ratio of the aligned canine(At the end of the orthodontic treatment which is expected to happen between 15 to 24 months.)
- Bone support ratio of the adjacent lateral incisor(At the end of the orthodontic treatment which is expected to happen between 15 to 24 months.)