Efficacy of Micro-osteoperforations on the Rate of Maxillary Canine Retraction: A Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 12
- 试验地点
- 1
- 主要终点
- Rate of canine retraction
研究概览
简要总结
The aim of the present clinical study was directed to evaluate the effectiveness of micro-osteoperforations on the rate of canine retraction; in addition, the potential risk for root resorption during maxillary canine retraction.
详细描述
The aim of the present clinical study was directed to evaluate the effectiveness of micro-osteoperforations on the rate of canine retraction; in addition, the potential risk for root resorption during maxillary canine retraction.
This study was conducted on a total sample of 24 canines of 12 patients, 8 females and 4 males, with mean age was 16.17 ± 2.29 years old who required therapeutic extraction of maxillary 1st premolars and canine retraction. They were selected randomly from the Outpatient Clinic, Department of Orthodontics, Faculty of Dental Medicine (Boys), Al-Azhar University, Cairo, Egypt.
Both maxillary canines, in each patient, were randomly assigned to either an experimental side or the control side in a simple split-mouth design. In the experimental side, micro-osteoperforations was performed distal to the maxillary canine before starting retraction, while the canines in the contralateral control side were retracted without micro-osteoperforations.
Extraction was done at the start of the treatment, and before fitting of the orthodontic appliance. Then upper dental arches were leveled and aligned using conventional sequences of wires.
Three flapless micro-osteoperforations was performed by using orthodontic miniscrews distal to the maxillary canines in the experimental side before starting retraction. Each perforation was 1.6 mm in diameter and 3-4 mm depth into the bone. Canines were completely retracted on 0.016 × 0.022 ̋ stainless steel wires by using closed coil spring delivered 150 gm force.
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
- None
入排标准
- 年龄范围
- 14 Years 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •An age ranged between 14 to 18 years.
- •Class II division 1 malocclusion or Class I bimaxillary protrusion with mild or no crowding. Wherever crowding was present, it was symmetrical on both sides of the arch.
- •Patients who diagnosed to require extraction of at least maxillary first premolars bilaterally as a part of their treatment plan.
- •Complete permanent dentition (3rdmolars were not included).
- •Good oral and general health.
- •No history of periodontal problems.
- •No therapeutic intervention planned involving intermaxillary or other intraoral or extraoral appliances during the study period.
排除标准
- •Blocked out or impacted maxillary canines.
- •Transverse and/or vertical skeletal dysplasia or craniofacial anomalies.
- •Systemic diseases or regular use of medications that could interfere with orthodontic treatment.
- •Previous orthodontic treatment.
研究组 & 干预措施
Conventional side
Canine retraction was commenced without micro-osteoperforations.
Mops side
Canine retraction was commenced with micro-osteoperforations.
干预措施: Micro-osteoperforation (Procedure)
结局指标
主要结局
Rate of canine retraction
时间窗: change from start of canine retraction until complete space closure up to 6 months
Clinically, patients were evaluated immediately before canine retraction and every 4 weeks till complete space closure (complete canine retraction). It was based on measuring the distance between the contact points on the distal surface of the canines and the contact points on mesial surface of the second premolars.
Canine root length changes
时间窗: change from start of orthodontic treatment until complete space closure up to 9 months
The CBCT scans were taken before orthodontic treatment and after complete space closure (canine retraction) to be analyzed for assessment of Canine root length changes. The root length was measured along the axis of the root, perpendicular to a line connecting the buccal and palatal cemento-enamel junction CEJ in sagittal view
次要结局
- Anchorage loss of maxillary first permanent molars.(change from start of orthodontic treatment until complete space closure up to 9 months)
研究者
Ahmed Akram Elawady
Principal Investigator
Al-Azhar University