The Reliability and Validity of Little's Irregularity Index Assessment Using Three Dimensional (3D) Digital Models and Plaster Model's Photographs: A Reproducibility Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20
- 试验地点
- 1
- 主要终点
- validity, reliability, and repeatability of Little's Irregularity Index measurements
研究概览
简要总结
The primary aim of the current study was to estimate the validity, reliability, and repeatability of LII measurements
详细描述
the primary aim of the current study was to estimate the validity, reliability, and repeatability of LII measurements made directly on digital models compared to those made on traditional plaster models. As a secondary aim, the same comparisons will also performed between digital photographs of study models and their corresponding plaster models.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 13 Years 至 18 Years（Child, Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Standardized study models for patients with a full set of permanent teeth (the third molars are not considered).
- •All study models for patients with Angle class I malocclusion.
- •All study models for patients with mild to moderate anterior teeth crowding in both arches
- •Corresponding standardized direct scanned intraoral digital models for all selected study models
- •Corresponding standardized digital photos for all selected study models
- •Corresponding standardized digital intra-oral photos for all selected study models
排除标准
- •Damaged or distorted study models
- •Unclear or distorted digital models (STL file)
- •Unclear or distorted digital photos of study models (JPG File)
- •Unclear or distorted intra-oral photos (JPG File)
结局指标
主要结局
validity, reliability, and repeatability of Little's Irregularity Index measurements
时间窗: 3 months
the primary aim of the current study was to estimate the validity, reliability, and repeatability of LII measurements made directly on digital models compared to those made on traditional plaster models
次要结局
未报告次要终点
研究者
Mohammed B.M. Farhat
Master degree graduate student in orthodontic department
Al-Azhar University