Objective: The goal of this study was to use cone-beam computed tomography (CBCT) images to analyze the association of
maxillary sinus mucosal lining thickness (MT) with various dental problems.
Material and method: CBCT scans of 159 cases (92 females and 67 males) with a mean age of (38.30± 13.69) years were
collected from the patient's database of Oral and Maxillofacial Radiology Department, Faculty of Dentistry, Cairo University,
Egypt, and retrospectively evaluated. The second premolar, first and second molar were evaluated for the presence of a periapical
lesion, root canal filling, periodontal bone loss, caries, and dental filling. Sinus mucosal thickening was classified into 5 grades;
1. MT less than 1 mm; 2. 1- 3 mm; 3. 3- 6 mm; 4. 6- 10 mm and 5. More than 10mm.
Results: Associations between MT occurrence and different demographic and dental variables were all statistically not
significant (p>0.05). A binomial logistic regression showed that age, sex, presence of a periapical lesion, and dental caries all
had a significant effect on MT occurrence (p<0.05).
Conclusion: This study's findings revealed that maxillary sinuses mucosal lining are influenced by various dental conditions
and that the prevalence of MT has a direct positive association with age, presence of a periapical lesion, dental caries, and
higher in males.