Abstract

Objectives: The presence of intraosseous vascular canals may cause bleeding complications in sinus augmentation surgery for dental implant therapy. The purpose of this study is to investigate the prevalence of intraosseous anastomosis of the posterior superior alveolar artery (PSAA) and infraorbital artery (IOA) in the lateral wall of the maxillary sinus utilizing cone beam computed tomography (CBCT).

Materials and Methods: Eight hundred and twenty-one cone beam computed tomography scans were retrospectively evaluated for the presence of an intraosseous artery in the lateral wall of the maxillary sinus. Anterior teeth associated with the canal and the vertical distance from the artery to the floor of the sinus were documented. Age, gender, and ethnicity were also evaluated to determine potential relationships for the presence of the intraosseous artery.

Results: Anastomoses of the posterior superior alveolar artery and infraorbital artery in the lateral wall were found in 752 (84%) sinuses of 477 scans. Most of the detected vascular canals were seen bilaterally. There was also a presence of multiple canals in 155 (17%) sinuses, the majority being two canals. The highest number of canals visualized were four canals in four sinuses. The tooth most associated with the vascular canal was the second premolar. The average mean distance from the vascular canal to the floor of the sinus was 12 mm.

Conclusion: The prevalence of intraosseous anastomosis in maxillary sinus lateral wall was found in 84% of sinuses, which is greater than previously reports of (53-73%). Locating the vascular canals prior to surgery is essential to minimize bleeding complications. Cone beam computed tomography (CBCT) is highly recommended as a diagnostic tool prior to lateral wall sinus augmentation surgery and implant placement.

Keywords: Cone Beam Computed Tomography; Maxillary Sinus Augmentation; Intraosseous Anastomosis

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Citation

Citation: Yueh Ju Hsiao., et al. “Prevalence of Intraosseous Vascular Canals in an United States Dental School Population”. Acta Scientific Dental Sciences 4.6 (2020): 59-68.

Copyright

Copyright: © 2020 Yueh Ju Hsiao., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.