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The number of maxillary sinusitis is significant in the structure of inflammatory diseases in an outpatient maxilla-facial surgery and they are one of the chief reasons for the patients’ hospitalization. The anatomy of maxillary sinus with 3D Computer tomography scan should be included in appropriate presurgical treatment planning. The purpose of the study was to determine the visualization and diameter of the maxillary artery in according analyzing of Cone bean computer tomography data of patients, to identify the relationship between the presence of chronic maxillary sinusitis and the visualization of the maxillary artery and its diameter. Material and methods. The data of 44 Cone bean computer tomography results was analyzed for 24 patients with chronic maxillary sinusitis of odontogenic origin (it was observation group 1, included 48 sinuses), 20 patients were without pathological changes in the maxillary sinus (it was comparison group 2, included 40 sinuses). All the Cone bean computer tomographies randomly selected by patients who visited dental outpatient clinics of Minsk city, the Republic of Belarus during the period from 2018 to 2020 and were analyzed by GALILEOS program. Results and discussion. The analysis revealed that maxillary artery was not detected in 25.0% (12) patients of group 1, while in group 2 it was not detected in 5.0% (2) patients. When determining the diameter of the maxillary artery, we found that in group 1 patients, the artery diameter 0.1-0.99 mm was determined in 91.7% (33) cases, and in 92.2% (35) of group 2 patients; the diameter of the maxillary artery 1.0 mm or more in group 1 patients was determined in 8.3% (3) of observations, and in 7.8% (3) of group 2 patients Different types of the maxillary arteries localization were revealed. Conclusion. The study results showed that in patients of group 1 with the presence of chronic maxillary sinusitis, the maxillary artery was not visualized 5 times more often than in patients of group 2 (comparison group), which may indicate to deeper ischemic changes in the maxillary tissues of patients with chronic maxillary sinusitis. There was no significant difference in the diameter of the maxillary arteries in groups 1 and 2. The study will be continued.

The Maxillary Artery Definition According to CBCT Data in Patients with Chronic Maxillary Sinusitis