Relationship between Anatomical Variations of Sinonasal Area and Maxillary Sinus Pneumatization

• Published in: Iranian journal of otorhinolaryngology 2019-07, Vol.31 (4), p.229-234
• Main Authors: Najmeh Anbiaee, Raziyeh Khodabakhsh, Ali Bagherpour
• Format: Article
• Language: English
• Subjects: anatomical variations; computed tomography scan; maxillary sinus volume; pneumatization
• ISSN: 2251-7251; 2251-726X
• DOI: 10.22038/ijorl.2018.32142.2075

Introduction: Maxillary sinuses are among the largest paranasal sinuses with various shapes and volumes. The dimensions and volumes of maxillary sinuses play an important role in the surgical treatment plan. The higher levels of pneumatization of alveolar bone lead to the increase of odontogenic sinusitis which cause problems in dental implantation. Therefore, this study aimed to evaluate the relationship between maxillary sinus volume and pneumatization and anatomical factors.   Materials and Methods: In this cross-sectional study, computed tomography (CT) images of the healthy maxillary sinuses of 199 adult patients were reviewed.  Amira software was used for the measurement of sinus volume. Sinus pneumatization of the alveolar bone in coronal CT scan images in the posterior teeth areas was measured. Moreover, anatomical variations of the sinonasal region, such as nasal septal deviation, and size of the ostium were measured and recorded. The Kolmogorov-Smirnov test, the t-test, and the Pearson’s and Spearman's correlation coefficients were applied for data analysis.   Results: According to the obtained results, the mean value of the maxillary sinus volume and the alveolar bone pneumatization were 15.54 mm3 and 3.54 mm, respectively. The mean value of the maxillary sinus volume was statistically higher among males than females (P