Canalis sinuosus mimicking a periapical inflammatory lesion

An anatomical variant: evaluation of accessory canals of the canalis sinuosus using cone beam computed tomography

“…This nerve is also divided into three alveolar proximal branches; anterior, middle and posterior superior alveolar nerves [5,13]. The infraorbital canal gives a small branch on its lateral face close to its midpoint to allow passage of the anterior superior nerve.…”

“…This nerve innervates the incisor and canines and traverses maxillary anterior wall by a bony canal called canalis sinuosus (CS) [2,15]. This bony canal, where the anterior superior alveolar nerve passes through, contains arteries and veins [11,13]. Surprisingly, such an important canal is not known by practitioners unless encountering complications such as unexpected bleedings or paraesthesia.…”

Anatomical Variation of Canalis Sinuosus: Reports of Two Cases

“…However, in 2D imaging techniques, CS is hardly ever seen owing to the porosity of its cortical layers or its small caliber [1,7].…”

“…The CS and its variations may mimic a periapical lesion due to its anatomical position [7]. Shelley et al [7] reported that the CS appeared like a periapical lesion in a periapical X-ray and after further periapical X-ray was performed with the film in a vertical position so the authors defined that it was a CS. Hence, it is essential to distinguish the CS from periapical lesions to prevent unnecessary treatments.…”

Peculiarities of anesthesia of maxillary incisors in case of periapical inflammation

“…В об-ласти центральных резцов ПВАН анастомозируют с носонебным нервом [7]. В литературе встречаются анатомические подтверждения иннервации резцов верхней челюсти резцовым нервом [17].…”