2013, Number 4
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Rev Cubana Estomatol 2013; 50 (4)
Double mental foramina
Ventorini VT, Sampaio NF, Haiter-Neto F, Queiroz FD
Language: English
References: 11
Page: 443-448
PDF size: 263.34 Kb.
ABSTRACT
The knowledge of the location, trajectory, and characteristics of the neurovascular bundles in the jaws is fundamental to reduce risk of injuries to this structure during surgical procedures, especially when anatomical variations are present. The presence of anatomical variations associated with the mental foramen has been
reported in some cases and is frequently undervalued in clinical procedures. Sensorial disturbances, such as paresthesia in the lower lip or cheeks, may occur as
result of pressure on the mental foramen. These anatomical variations can be detected in clinical practice by imaging exams. Computed tomography has been established as a valuable imaging modality capable of providing in-depth
information about maxillofacial structures, allowing detailed evaluation of their topography and anatomical variations, such as additional mental foramina. The
objective of this article was to describe a case with double mental foramina that only could be observed in computed tomography images. The use of cone beam computed tomography has increased in dentistry, thus anatomical variations that
may have an influence on the diagnosis and treatment planning must be recognized. Have a good knowledge of additional mental foramina may contribute to adequate anesthetic techniques and to avoid misdiagnosis of bone lesions and eventual damages to the nerves and vessel during surgical procedures in that region.
REFERENCES
Sawyer DR, Kiely ML, Pyle MA. The frequency of accessory mental foramina in four ethnic groups. Arch Oral Biol. 1998;43:417-20.
Hu KS, Yun HS, Hur MS, Kwon HJ, Abe S, Kim HJ. Branching patterns and intraosseous course of the mental nerve. J Oral Maxillofac Surg. 2007;65:2288-94.
Kalender K, Orhan K, Aksoy U. Evaluation of the mental foramen and accessory mental foramen in turkish patients using cone- beam images reconstructed from a volumetric rendering program. Clin Anat. 2011. Doi: 10.1002/ca.21277.
Naitoh M, Hiraiwa Y, Aimiya H, Gotoh K, Ariji E. Accessory mental foramen assessment using cone-beam computed tomography. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009;107:289-94.
Haktanir A, Ilgaz K, Turhan-Haktanir N. Evaluation of mental foramina in adult living crania using MDCT. Surg Radiol Anat. 2010;32:351-6.
Katakami K, Mishima A, Shiozaki K, Shimoda S, Hamada Y, Kobayashi K. Characteristics of accessory mental foramina observed on limited cone-beam computed tomography images. J Endod. 2008;34:1441-5.
Oliveira-Santos C, Souza PH, De Azambuja Berti-Couto S, Stinkens L, Moyaert K, Van Assche N, Jacobs R. Characterization of additional mental foramina through cone beam computed tomography. J Oral Rehabil. 2011;38:595-600.
Naitoh M, Nakahara K, Suenaga Y, Gotoh K, Kondo S, Ariji E. Comparison between cone-beam and multislice computed tomography depicting mandibular neurovascular canal structures. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010;109:25-31.
Çagiranka LB, Kansu H. Accessory mental foramen: a case report. J Contemp Dent Pract. 2008;9:98-104.
Ramadhan A, Messo E, Hirsch JM. Anatomical variation of mental foramen. A case report. Stomatologija. 2010;12:93-6.
Serman NJ. Differentiation of double mental foramina from extra bony coursing of the incisive branch of the mandibular nerve—an anatomic study. Refuat Hashinayim. 1987; 5:20-2.