The study of the alveolar antral artery canal in using cone beam computed tomography
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Abstract
The objective of this study was to evaluate both the frequency of the appearance and the location of the alveolar antral artery canal in four posterior maxillary teeth areas in a group of Thai population using cone beam computed tomography (CBCT).
Posterior maxillary teeth areas (671) of 184 maxillary sinuses from CBCT images were included. The radiolucent artery canals presenting in the lateral wall of the maxillary sinus was evaluated while the distance between the lower border of the artery and the alveolar crest was measured.
The results demonstrated that alveolar antral artery canal was detected in 111 of total 184 sinuses (60.3%).The mean distance of artery canal from alveolar crest was 24.62 ± 3.55 mm, 20.35 ± 4.74 mm, 15.82 ± 4.09 mm and 15.93 ± 3.57 mm at first premolar, second premolar, first molar and second molar appropriately and the statistically significant difference among them was P value <0.001, ANOVA. Even though all arteries situated in premolar areas were more than 15 mm from alveolar crest, arteries located less than 15 mm from alveolar crest were observed in 59 out of 126 molar areas (46.8 %).
Although all maxillary premolar teeth areas evaluated were safe from accidental hemorrhage in lateral osteotomy of sinus lift surgery, performing surgery in molar areas should be careful since 46.8% of the location of artery was below 15 mm from the alveolar crest.
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