Evaluation of maxillary sinus anatomical variation and pathologies through cone-beam computed tomography in patients with impacted third molars in the maxilla
Aim: The aim of this study was to compare between the frequency of anatomical variation and pathology in the maxillary sinuses having the impacted third molars in the maxilla adjacent to the dental arch and the maxillary sinuses adjacent to the dental arch having the erupted third molars.
Material and Methods: A total of 284 cone beam computed tomography (CBCT) images of the maxillary sinuses, 141 of which are adjacent to the impacted third molar teeth in the maxilla, and 143 of which are adjacent to the erupted third molar teeth, were retrospectively evaluated. In the CBCT images, the pathology, septa, accessory ostium, overpneumatization, Haller cell and teeth root relation with sinus were evaluated in each maxillary sinus.
Results: There were no statistically significant differences in the frequency of pathology (p = 0.402), septa (p = 0.904) and overpneumatization (p = 0.798) between the maxillary sinuses adjacent to the impacted third molar dental arch and the erupted third molar dental arch. However, there was a statistically significant difference in the frequency of accessory ostium (p = 0.032) and Haller cells (p = 0.025) between the maxillary sinuses adjacent to the impacted third molar dental arch and the maxillary sinuses adjacent to the erupted third molar dental arch.
Conclusion: In the present study, the frequency of accessory ostium and Haller cells in the maxillary sinuses adjacent to impacted third molar dental arches of the maxilla was found to be lower than in the maxillary sinuses adjacent to erupted third molar dental arches.
Key words: Anatomical Variation; Maxillary Sinus; Third Molar Teeth.
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