Deep Bite Correction Using Auxiliary Intrusion Cantilevers With Initial Archwires in Adolescents
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 27
- 试验地点
- 2
- 主要终点
- Extrusion of lower first molar
研究概览
简要总结
The purpose of this study was to determine the effect of auxiliary intrusion cantilevers used with resilient archwires during the leveling and alignment phase in intruding lower 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
- None
入排标准
- 年龄范围
- 12 Years 至 17 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Permanent dentition present except for third molars
- •No history of previous orthodontic treatment.
- •Class I or II malocclusion with minimal or no lower anterior crowding (<3 mm)
- •Excessive overbite (>3 mm).
排除标准
- •Syndromic patients as well as individuals with skeletal asymmetry
- •Endodontically treated or periodontally involved loweranterior teeth.
- •Need for tooth extraction in the lower arch.
- •Agenesis (except for third molars)
- •Any kind of tooth/root shape anomaly
结局指标
主要结局
Extrusion of lower first molar
时间窗: six months
Perpendicular distance between the mesio-buccal cusp tip of the lower first molar and mandibular plane measured on lateral cephalometric x-rays
Lower incisor intrusion and proclination
时间窗: six months
Perpendicular distance between the incisal edge of the lower central incisor and mandibular plane measured on lateral cephalometric x-rays
True incisor intrusion
时间窗: six months
Perpendicular distance between the center of resistance of mandibular central incisor and the mandibular plane measured on lateral cephalometric x-rays
Overbite
时间窗: six months
Distance between incisal edges of upper and lower incisors measured on lateral cephalometric x-rays
Proclination of lower incisors
时间窗: six months
Angle formed by the long axis of mandibular central incisor and mandibular plane measured on lateral cephalometric x-rays
Lower incisor intrusion
时间窗: six months
Perpendicular distance between the apex of the lower central incisor and mandibular plane measured on lateral cephalometric x-rays
Distal tip of lower first molar
时间窗: six months
Angle formed between the long axis of lower 1st molar and mandibular plane measured on lateral cephalometric x-rays
次要结局
- Root resorption of lower incisors(six months)
- Depth of curve of Spee(six months)
- Depth of gingival sulcus(six months)
- Width of keratinized gingiva(six months)
研究者
Mona El-Maghraby
MSc candidate, Orthodontics Department, Faculty of Dentistry, Alexandria University
Alexandria University