Accuracy of Arch Analysis in Mixed Dentition Using Digital Study Models Versus the Plaster Models Using Tanaka and Johnston Prediction Equation:
试验速览
- 阶段
- 不适用
- 入组人数
- 10
- 试验地点
- 1
- 主要终点
- accuracy of digital models in arch analysis.
研究概览
简要总结
Accuracy of arch analysis in mixed dentition using digital study models versus the plaster models using Tanaka and Johnston prediction equation:
详细描述
Space analysis is traditionally performed by diagnostic measurements that have been obtained from plaster dental casts through measurements which might be influenced by subjective interpretation and bias when constructed.
*So another method of diagnostically measuring study models was introduced (Digital software). This system creates digital images of dental casts with software. From the digitized models, various analyses and routine measurements could be done that might accelerate and solve many problems and difficulties associated with storage, retrieval, reproduction, communication, and breakage of conventional plaster casts.
- Taking an impressions for a mixed dentition aged children.
- Perform a measurements using Tanaka and Johnston equation for an arch analysis using a caliper and 3Shape ortho-analyzer software.
- Casts will be scanned using the 3D scanner then by using the 3shape software measurements will be held according to Tanaka and Johnstopn prediction equation.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Prospective
入排标准
- 年龄范围
- 6 Years 至 10 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Aged range from 6-
- •patients medically free from any syndromes that could affect the normal eruption.
- •Normal radiographical findings in teeth eruption.
- •Erupted lower incisors.
排除标准
- •Extracted lower 1st permanent molar.
- •congenital missing of incisors.
- •Badly decayed permanent incisors or 1st molar that could compromise the measurements.
- •Any sensitivity to any of the impression materials.
结局指标
主要结局
accuracy of digital models in arch analysis.
时间窗: 6 months
using digital models through software(3shape ortho analyzer) to evaluate it's accuracy in arch analysis through prediction equation(Tanaka and Johnston equations)versus plaster models by using manual caliper.
次要结局
未报告次要终点
研究者
Sara Mohamed Tag El Deen
Master student in Cairo university (principle Invistigator)
Cairo University