Comparison of posterior alveolar canal location measured on computer tomography scan with cadaveric measurement of posterior superior alveolar foramen in Japanese samples

Uchida, Yuki; Aijima, Reona; Danjo, Atsushi; Yamashita, Yoshio; Shibata, K.; Kuraoka, Akio

doi:10.1016/j.ijom.2019.02.016

Cited by 4 publications

(1 citation statement)

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“…Knowing the exact size (diameter) of the PSSA will be clinically helpful, given that various authors have reported that arteries with a diameter of over 1 mm increase the risk of bleeding by up to 57%, a value which is even higher when the diameter exceeds 2 mm [ 21 , 27 – 29 ]. Our results are consistent with those of other authors who found arteries in excess of 1 mm in diameter in over half of cases assessed using CBCT in patient samples similar to the present work [ 24 , 30 , 31 ].…”

Section: Discussionmentioning

confidence: 99%

Anatomical variations and accessory structures in the maxilla in relation to implantological procedures: an observational retrospective study of 212 cases using cone-bean computed tomography

et al. 2022

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Purpose This study used cone-beam computed tomography (CBCT) to analyze the prevalence of several maxillary anatomical/accessory structures, as well as variations within each type, assessing how accurate diagnosis can minimize the risk of intraoperative complications during implantological procedures in the oral cavity. Methods 212 CBCT scans of the maxilla were analyzed, captured over a period of 18 months for surgical planning purposes. The prevalence of posterior superior alveolar arteries (PSAA), maxillary sinus septa (MSS), and branches of the canalis sinuosus (CS) were evaluated, as were the diameter and location of each anatomical structure in horizontal and vertical planes. P < 0.05 was considered statistically significant. Results PSAAs were observed in 99.1% of cases, the intrasinus type being the most frequent; MSS were noted in 15.6% of the sample, mainly in the posterior region with sagittal orientation; CS branches were observed in 50% of patients, mainly in relation to the incisors and significantly more prevalent among males. Conclusions The use of CBCT significantly increases the possibility of clearly identifying these anatomical structures. The differences found between patients highlight the importance of carrying out an exhaustive radiological study of the individual to prevent complications, such as Schneiderian membrane perforation, neurovascular damage or bleeding during surgery. Graphical Abstract

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