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2013 Oct-Dec; Vol 4, No 4:e2 |
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Anatomical Relationship of Lingual Nerve to the Region of Mandibular Third Molar J Oral Maxillofac Res 2013 (Oct-Dec);4(4):e2 doi:10.5037/jomr.2013.4402 |
Anatomical Relationship of Lingual Nerve to the Region of Mandibular Third Molar
1Piracicaba Dental School, State University of Campinas, Piracicaba, Sao Paulo, Brazil.
2Department of Morphology, Center for Health Sciences, Federal University of Piauí, Teresina, Piauí, Brazil.
3Department of Pathology and Dental Clinics, Federal University of Piauí, Teresina, Piauí, Brazil.
Corresponding author:
Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas
Av Limeira, 901. Bairro Areião – CEP 13414-903, Piracicaba, Sao Paulo
Brazil
Phone: +55 192106-5708
Email: marcelobreno@yahoo.com.br; marcelobrenocbmf@gmail.com
ABSTRACT
Objectives: This study evaluated the relationship of the lingual nerve with the adjacent anatomical structures of the mandibular third molar region, influencing the dentist to be aware of the variability of these relationships.
Material and Methods: Samples of 24 human corpse half-heads were selected and divided according with the presence or absence of the mandibular third molars. The lingual nerve (LN) was explored, showing its run from the oblique line until its crossing with the submandibular gland duct. The measurements along the LN and the adjacent anatomical structures were taken at the retromolar, molar and sublingual region with the use of a digital caliper.
Results: The distance from the LN and the third molar socket, which represents the horizontal distance of the lingual plate to the nerve, on average, was 4.4 mm (SD 2.4 mm). The distance from the LN and the lingual alveolar rim, which represents the vertical relationship between the nerve and the lingual alveolar rim of the third molar socket, on average, was 16.8 mm (SD 5.7 mm). The LN has a varied topography that leaves it very vulnerable during any procedure executed in this region.
Conclusions: Unless adequate protection of the lingual nerve is acquired by following an adequate surgical technique, the lingual nerve will always be vulnerable to damage during surgical intervention or manipulation in this region.
J Oral Maxillofac Res 2013 (Oct-Dec);4(4):e2
doi:10.5037/jomr.2013.4402
Accepted for publication: 27 December 2013
Keywords: lingual nerve; lingual nerve injury; third molar; paresthesia.
To cite this article: Anatomical Relationship of Lingual Nerve to the Region of Mandibular Third Molar. J Oral Maxillofac Res 2013;4(4):e2 URL: http://www.ejomr.org/JOMR/archives/2013/4/e2/v4n4e2ht.htm |
Received: 16 October 2013 | Accepted: 27 December 2013 | Published: 1 January 2014
Copyright: © The Author(s). Published by JOMR under CC BY-NC-ND 3.0 licence, 2014.