Correlation between maxillary sinus volume and different facial patterns using Cone Beam Computed Tomography in adults

Introduction: The maxillary sinus both affects and is affected by orthodontic treatment thus knowledge about it is of great value. With the emergence of Cone-beam computed tomography (CBCT) studying the maxillary sinus became more accurate. Aim: to find out if there is a correlation between the maxillary sinus volume and facial pattern in adults using cone beam computed tomography. Methods: Cone-beam computed tomography (CBCT) scans of 36 adults were obtained. They were divided equally into three groups: Normal facial pattern, hyper-divergent facial pattern and hypo-divergent facial pattern. The volume of the maxillary sinus on both the right and left sides were measured in each group using OnDemand3D software program. Results: The results of this study were that there is no significance difference between the maxillary sinus volume in the different groups of facial pattern. There is no significance between the volume of the maxillary sinus on the right and left side. Conclusions: There is no correlation between the maxillary sinus volume and the vertical growth pattern. The right and left maxillary sinus are corresponding to each other in volume. INTRODUCTION Evaluation of the maxillary sinus during orthodontic diagnosis is crucial since it may affect the orthodontist’s treatment plan. Precautions should be taken so that the line of treatment chosen not encroach on the integrity of the maxillary sinus(1). Orthodontic treatment plan is affected by the size and position of the maxillary sinus. Likewise, the maxillary sinus may be affected by different malocclusions either dental or skeletal, anteroposterior or vertical in terms of size and position(2,3). With the emergence of cone beam computed tomography (CBCT) and its advantages in the world of radiography appreciated, orthodontists are using it more and more frequently. Studying the maxillary sinus becomes more accurate and with a 3D approach and the volume of the sinus could be evaluated(4). Several researches were made to pinpoint whether there is a relation between maxillary sinus volume and malocclusion. Some studies show that there was a correlation between the maxillary sinus volume and vertical malocclusion however there were other studies that contradicted that findings(5-8). DOI: 10.21608/dsu.2022.95693.1083 Manuscript ID: DSU-2110-1083