Frequency of External Root Resorption and Distal Caries in Mandibular Second Molars Associated With Mandibular Impacted Third Molars in a Sample of Egyptian Population Using CBCT: A Hospital-Based Cross-Sectional Study
试验速览
- 阶段
- 不适用
- 入组人数
- 255
- 主要终点
- Presence of external root resorption (ERR) in mandibular 2nd molars in percentage
研究概览
简要总结
The prevalence of external root resorption and distal caries in mandibular second molars associated with impacted mandibular third molars will be detected in addition to the association of the risk factors.
详细描述
Settings:
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.
CBCT images will be obtained from Egyptian patients who had CBCT examination as part of their dental examination, diagnosis or treatment planning.
Variables:
- Angulation of the third molar according to Winter's classification (vertical/mesio-angular/disto-angular/horizontal).
- Position of impacted mandibular third molar according to Pell and Gregory21 classification. (Position A, position B, position C)
- Age.
- Gender.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •The patient should be older than 18 years old.
- •Having all teeth erupted except the third molar.
排除标准
- •Completely erupted third molars.
- •Impacted third molars with pathologic lesions.
- •Third molars with evidence of root development which is less than two-thirds.
- •Any artifact demonstration that obscure the areas of interest.
- •Missing third molars.
- •Patients with developmental disorders like microdontia, presence of fourth molars, impacted second molars, supernumerary teeth, and odontomes.
结局指标
主要结局
Presence of external root resorption (ERR) in mandibular 2nd molars in percentage
时间窗: Up to 2020
Detection of external root resorption in mandibular 2nd molars associated with mandibular impacted third molars using CBCT software Romexis, (Dichotomous data - Yes/No)
次要结局
- Presence of distal caries in mandibular 2nd molars in percentage(Up to 2020)
研究者
Rawan Abdel Wahhab Bahaa Eldin Elkassas
Principal Investigator
Cairo University