Effect of Interceptive Strategies on the Clinical Outcome of Maxillary Impacted Canines
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 84
- 试验地点
- 2
- 主要终点
- Number of Definitive Upper Canines That Erupt Spontaneously up to 18 Months of Follow up
研究概览
简要总结
This study aims to investigate the effect of 3 randomly applied interceptive measures (slow maxillary expansion, extraction of deciduous canines and no intervention) on maxillary canine impaction in patients with early mixed dentition and lack of space in the dental arch. Additionally, these groups are compared with a control group with adequate space. Patients with at least one impacted maxillary canine, presence of deciduous canines and absence of crossbite were included. The canine position is assessed by measuring five variables (sector of the canine cusp, canine to midline angle, canine to first premolar angle, canine cusp to midline distance, and canine cusp to maxillary plane distance) on 2 panoramic radiographs at 0 (T1) and 18 months (T2).
详细描述
The detailed information regarding methodology has been entered in following sections
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 (Participant)
入排标准
- 年龄范围
- 7 Years 至 11 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •All patients presenting at the intake consultation of the Department of Orthodontics of University Hospitals Leuven, Belgium from September 2016, with at least one maxillary permanent canine impaction are invited to participate. Canine impaction is diagnosed based on a panoramic radiograph, taken for standard evaluation of dental development and associated pathology. A maxillary canine is considered to be impacted when the canine to midline angle was ≥15° (Alqerban et al. 2014; Warford et al. 2003). Only impacted maxillary canines with incomplete root formation and with persisting deciduous canines are included.
排除标准
- •presence of uni- or bilateral posterior dental crossbite,
- •upper permanent canines showing root malformation, ankylosis or fully erupted,
- •evidence of root resorption of adjacent teeth, previous orthodontic treatment,
- •craniofacial syndromes,
- •systemic disease that would impede orthodontic treatment/surgery and recent exposure to radiotherapy.
- •large eruption follicles seen on the permanent canines
结局指标
主要结局
Number of Definitive Upper Canines That Erupt Spontaneously up to 18 Months of Follow up
时间窗: 18 months
Number of definitive upper canines that erupt spontaneously up to 18 months of follow up.
Number of Definitive Upper Canines That Erupt Spontaneously After 18 Months of Follow up
时间窗: After the first 18 months of follow up
Number of definitive upper canines that erupt spontaneously after 18 months of follow up..
次要结局
- Sector Where the Canine is Located(18 months)
- Angulation of the Canine Towards the Dental Midline(18 months)
- Angulation of the Canine Towards the First Premolar(18 months)
- Distance Between the Canine Cusp and the Midline(18 months)
- Distance Between the Canine Cusp and the Occlusal Plane(18 months)
- Need for Further Minor and/or Major Orthodontic Intervention(18 months after baseline)