Radioanatomic Study of Accessory Canals of Canalis Sinuosus using CBCT

Document Type : Original articles

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oral radiology, dentistry, Ain shams university, Cairo, Egypt

Abstract

Aim: To assess prevalence, position, and multiplanar measurements of the canalis sinuosus (CS) accessory canals (ACs) using cone beam computed tomography (CBCT).
Materials and Methods: Maxillary CBCT images of 218 patients aged between 14 and 60 years were retrospectively selected. Two experienced oral and maxillofacial radiologists evaluated all CBCT images using the multiplanar screen to assess the presence and position of the accessory canals of CS. Then, we conducted different linear measurements to identify the relation between the canal and nearby anatomical structures. Statistical tests were performed to determine prevalence, age, gender, and location distribution.
 Results: A total of 136 accessory canals have diameter  1.00 mm were discovered in 93 patients (42.6%). The common position of the canal was palatal to all anterior teeth. The right central had the highest frequency (28.8%), followed by the left central (26.8). The average diameter of accessory canals on the right and left sides were 1.31±0.29 and 1.23±0.23 respectively. Females showed a higher frequency for the presence of right canals while males had a higher frequency for left canals. There was no statistically significant difference between age and prevalence, canal diameter, and position with a p-value < 0.05.
Conclusion: The canal is frequently present palatal to central, followed by lateral incisor. Before performing any surgical procedures in the anterior maxilla, it is recommended to do a (CBCT) scan to save anatomical components.

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