European Journal of Anatomy

Official Journal of The Spanish Society of Anatomy
Cover Volume 24 - Number 3
Eur J Anat, 24 (3): 229-234 (2020)

Concurrent ‘coronoid foramen’ with trifid mandibular canal in a live human: CBCT exploration of a unilateral variant

Nyer Firdoose C.S.

Riyadh Specialized Dental Center, Central Second Health Cluster, Ministry of Health, Ishbiliyah, 13226 Riyadh, King-dom of Saudi Arabia

ABSTRACT The incidence of a coronoid foramen in a live human subject is rare and hence the scarcity of the literature. The knowledge of any such anatomi-cal variation is important, as surgical procedures on the mandible are regularly performed by dental as well as oral and maxillofacial surgeons. The current script details anomalous morphology of an isolated coronoid foramen in the mandible of a 16-year-old female Saudi patient, which is a first ever documented case along with the presence of two separate accessory mandibular canals encoun-tered during routine dental investigations. A high spatial resolution three-dimensional cone beam computed tomography (CBCT) was used as a di-agnostic investigative method so as to allow an accurate three-dimensional analysis of mandibular coronoid foramen and accessory mandibular canal variations. These variations were documented and a detailed review of literature done. The script fo-cuses on the variations themselves, and the clini-cal implications of the presence of such variations. A thorough understanding of anatomical variants in the mandible and their neurovascular contents al-ways determines the success of any procedural anesthesia, the prevention of surgical misadven-ture and the etiology of pathologic processes.

Keywords: Coronoid foramen – Unilateral variant – Trifid mandibular canal – Inferior alveolar nerve – Cone-beam computed tomography

European Journal of anatomy
ISSN 2340-311X (Online)