Maxillary Sinus Clinical Trial
Official title:
Assessment of Maxillary Sinus Septum and Its Prevalence in a Sample of Egyptian Population Using 3D CBCT : A Cross-Sectional Study
a cross-sectional study to estimate the prevalence of maxillary sinus septum and assessment of it in a sample of Egyptian Population using cone beam computed tomography through retrospective data analysis
Setting and location:
1. 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.
2. CBCT images will be obtained from Egyptian patients who had CBCT examination as part of
their dental examination, diagnosis or treatment planning.
Participants:
A total sample of 111examined sinus belonging to Egyptian individuals will be included.
Variables:
1. Prevalence of maxillary sinus septa.
2. Location of maxillary sinus septa.
3. Orientation of maxillary sinus septa in dentulous & edentulous individual.
Data Sources / Measurements:
- Retrospective Data collection will be performed after the CBCT images are pooled from
the computer database.
- All the CBCT examinations will be scanned using CBCT machine (Planmeca promax 3D Mid).
- CBCT scans using different fields of view, and different voxel resolutions .
- CBCT images will be interpreted by two oral radiologists independently; blinded from
demographic data of the patients and from the results of each other.
- Each one will evaluate the images separately twice with a period of two weeks between
the two reading sessions.
- Then inter-observational and intra-observational variability between the observers will
be evaluated.
Bias:
No source of bias.
Study Size:
The results showed that a total sample size of 111examined sinus will be adequate to detect
sinus septum prevalence of 24.6% with an 8% margin of error, a significance level of 5% and a
95% confidence interval.
Quantitative Variables:
The number of CBCT scans of Egyptian individuals with maxillary sinus septa will be counted
to estimate the variations in the Egyptian population.
Statistical methods:
Data will be analysed using IBM SPSS advanced statistics (Statistical Package for Social
Sciences), version 21 (SPSS Inc., Chicago, IL). Numerical data will be described as mean and
standard deviation or median and range. Categorical data will be described as numbers and
percentages.
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