Assessment of the Variations in the Number of Roots and the Root Canal System of the Permanent Mandibular First and Second Molars in a Sample of Egyptian Population Using Cone Beam Computed Tomography
试验速览
- 阶段
- 不适用
- 入组人数
- 384
- 主要终点
- Extra root in the first and second mandibular permanent molars
研究概览
简要总结
A cross-sectional study to estimate Variations in the Number of Roots and the Root Canal System of the Permanent Mandibular First and Second Molars in a Sample of Egyptian Population using cone beam computed tomography through retrospective data analysis
详细描述
Setting and Location:
The data collection will be obtained from the data base available at the department of oral and maxillofacial radiology, faculty of dentistry, Cairo university, Cairo, Egypt.
cone beam images will be obtained from Egyptian patients who had cone beam computed tomography examination as part of their dental examination, diagnosis or treatment planning .
Participants:
A total sample of 384 mandibular first and second permanent molars belonging to Egyptian individuals will be included.
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
- 15 Years 至 —（Child, Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Fully maturated and erupted mandibular permanent first and second molars of Egyptian patients, males or females .
- •Intact roots without fractures or cracks .
- •Molars without posts or previous root canal treatment .
- •CBCT scans of mandibular first and second molars using different fields of view, and different voxel resolutions .
排除标准
- •Evidence of apicectomy or periapical surgery .
- •Mandibular molars with developmental anomalies .
- •External or Internal Root resorption .
- •Root Canal Calcification .
- •Previous Root Canal treatment .
- •Post restorations .
结局指标
主要结局
Extra root in the first and second mandibular permanent molars
时间窗: six months
by Percentage
次要结局
- Extra root canals in the first and second mandibular permanent molars(six months)
研究者
Farid Medhat
Principal Investigator
Cairo University