JDSE
Journal of Dental Sciences and Education

The Journal of Dental Sciences and Education deals with General Dentistry, Pediatric Dentistry, Restorative Dentistry, Orthodontics, Oral diagnosis and DentomaxilloFacial Radiology, Endodontics, Prosthetic Dentistry, Periodontology, Oral and Maxillofacial Surgery, Oral Implantology, Dental Education and other dentistry fields and accepts articles on these topics. Journal of Dental Science and Education publishes original research articles, review articles, case reports, editorial commentaries, letters to the editor, educational articles, and conference/meeting announcements.

eISSN: 2980-1389
Creative Commons CC BY-NC-ND 4.0 International License.
EndNote Style

Online Manuscript System

Index
Case Report
A new anatomical variation in ramus: the sigmoid canal
Abstract
During the radiological examination with CBCT of the patient who complained of joint pain, a structure with a length of 8.1 mm and a diameter of 0.6 mm was detected, starting from the sigmoid notch and descending down the ramus. The patient was unaware of the existence of this structure, and moreover, the patient did not show any symptoms. There was doubt as to whether the observed structure was an anatomical variation or a pathological phenomenon, and MRI was used to determine its content. It was realized that the structure imaged by MRI carried a branch of the maxillary artery. This structure was called the sigmoid canal. It was noteworthy that this anatomical structure was likely to cause complications in surgical interventions.

Keywords : Anatomical variation, ramus, sigmoid notch, mandible

Download Article


1. Krasny A, Krasny N, Prescher A. Anatomic variations of neural canalstructures of the mandible observed by 3-tesla magnetic resonanceimaging. J Comput Assist Tomogr. 2012;36(1):150-153.
2. Raikos A, Smith JD. Anatomical variations: How do surgical andradiology training programs teach and assess them in their trainingcurricula? Clin Anat. 2015;28(6):717-724.
3. Haas LF, Dutra K, Porporatti AL, et al. Anatomical variations ofmandibular canal detected by panoramic radiography and CT: asystematic review and meta-analysis. Dentomaxillofac Radiol. 2016;45(2):20150310.
4. Mclachlan JC, Patten D. Anatomy teaching: ghosts of the past, presentand future. Med Educ. 2006;40(3):243-253.
5. Hatcher DC. Progressive condylar resorption: pathologic processes andimaging considerations. Seminars Orthodont. 2013;19:97-105.
6. Honey OB, Scarfe WC, Hilgers MJ, et al. Accuracy of cone-beamcomputed tomography imaging of the temporomandibular joint:comparisons with panoramic radiology and linear tomography. Am JOrthod Dentofacial Orthop. 2007;132(4):429-438.
7. Standring S. Gray’s anatomy e-book: the anatomical basis of clinicalpractice. Elsevier Health Sciences. 2021.
8. Firdoose CSN. Bilateral ‘coronoid foramina’with accessory foramina onthe ‘lateral aspect of ramus’ of mandible: an unseen variance discoveryin humans. Surg Radiol Anat. 2018;40(6):641-646.
9. Kawai T, Asaumi R, Kumazawa Y, et al. Observation of the temporalcrest canal in the mandibular ramus by cone beam computedtomography and macroscopic study. Int J CARS. 2014;9:295-299.
10. Wang YM, Ju YR, Pan WL, et al. Evaluation of location and dimensionsof mandibular lingual canals: a cone beam computed tomographystudy. Int J Oral Maxillofac Surg. 2015;44(9):1197-1203.
11. Georgiev G. Significance of anatomical variations for clinical practice.Int J Anat Var. 2017;10(3):43-44.
12. Beck F, Austermann S, Bertl K, et al. Is MRI a viable alternative to CT/CBCT to identify the course of the inferior alveolar nerve in relationto the roots of the third molars? Clin Oral Investig. 2021;25:3861-3871.
13. Kaasalainen T, Ekholm M, Siiskonen T, Kortesniemi M. Dental conebeam CT: an updated review. Phys Med. 2021;88:193-217.
14. Khalifa HM, Felemban OM. Nature and clinical significance ofincidental findings in maxillofacial cone-beam computed tomography:a systematic review. Oral Radiol. 2021;37:547-559.
15. Topsakal KG, Korkmaz YN. 3-Dimensional imaging systems inorthodontics: Review of literature. Selcuk Dent J. 2018;5(2):186-193.
16. Mistry PN, Rajguru J, Dave MR. Study of the accessory mandibularforamina in dry adult human mandibles and their clinical and surgicalimplications. Int J Anatomy, Radiology and Surgery. 2021;10:16-19.
17. Nayak G, Sahoo N, Panda S. Accessory mandibular foramina and bifidmandibular canals-an anatomical study. Eur J Anat. 2019;23(4):261-266.
18. Naitoh M, Nakahara K, Suenaga Y, et al. Variations of the bony canalin the mandibular ramus using cone-beam computed tomography.OralRadiol. 2010;26:36-40.
19. Gunduz K, Serindere G, Avsever H, et al. A detailed CBCT study of‘coronoid foramina’and accessory foramina of the mandible: a uniqueanatomic variation. Acta Clin Croat. 2019;58(4):693-700.
20. Dogan ME, Kaya MS. Examination of coronoid foramen and coronoidcanal with CBCT. Heliyon. 2024;10(12):E33098
21. Ossenberg N. Temporal crest canal: case report and statistics on a raremandibular variant. Oral Surg Oral Med Oral Pathol. 1986;62(1):10-12.
Article available in :
Volume 2, Issue 2, 2024
Page : 50-52
https://doi.org/10.51271/JDSE-0034
Article Information
Received : 15 Haz 2024
Accepted : 23 Haz 2024
Published : 27 Haz 2024
Corresponding Author :

Mehmet Emin Doğan: Department of Dentomaxillofacial Radiology, Faculty of Dentistry, Harran University, Şanlıurfa, Turkiye

[email protected]
Citation : Doğan ME, Kotanlı S, Kaya MS. A new anatomical variation in ramus: the sigmoid canal. J Dent Sci Educ. 2024;2(2):50-52.

Read: 516
Cited: 0
Download : 354
_Footer