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ISSN: 2376-032X

JBR Journal of Interdisciplinary Medicine and Dental Science
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Review Article

Prevention and Treatment of IAN Injuries: A Literature Review

Juan F Martínez-Lage Azorín1*, Gustavo Segura Andrés1, Rosa P Valenzuela Molina1, Carlos Almendro Muries1 and Rubén Agustín Panadero2

1Master in Periodontology, Dental Practice, Murcia, Spain

2Department of Stomatology, University Medical and Dental School, Valencia, Spain

*Corresponding Author:
Juan F Martínez-Lage Azorín
Master in Periodontology, Dental Practice
C/Alfonso X El Sabio, 14, 1°B, 30008. Murcia, Spain
Tel: 645988187
E-mail: [email protected]

Received date: March 24, 2014; Accepted date: May 30, 2014; Published date: June 06, 2014

Citation: Azorín JFML, Andrés GS, Molina RPV, Muries CA, Panadero RA (2014) Prevention and Treatment of IAN Injuries: A Literature Review. J Interdiscipl Med Dent Sci 2:123. doi:10.4172/2376-032X.1000123

Copyright: © 2014 Martínez-Lage Azorín JF, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


The inferior alveolar nerve (IAN) is one of the most important structures in dentistry. It is a terminal branch that originates from the mandibular root of the trigeminal nerve. This branch courses through the inner aspect of the mandible and innervates teeth and some muscles as the mylohyoid or digastric ones and the gums or lips by its mental branch.

Although the main cause of IAN lesion occurs during third molars extractions, IAN can be injured during implant surgery, especially in cases with an atrophic posterior mandible. It is difficult to sever the nerve due to its large caliber. On the contrary, nerve compression or laceration constitute more common complications.

Diverse preventive methods to avoid IAN injury have been reported such as using a precise diagnostic procedure as computerized tomography (CT), guided implant surgery, or placing short implants.

We may classify nerve injury effects ranging from a light tingling (dysesthesia) to temporary or permanent loss of sensibility (hypoesthesia) or to increased sensibility. These cases require a careful management as these events may increase the patients’ and dental practitioners’ anxiety. When the IAN has not been totally interrupted, healing occurs in the next 3 to 6 month even spontaneously.

Sometimes we can alleviate patients giving them some painkillers or vitamin complexes to minimize symptoms or to improve healing. The use and utility of this kind of treatment is controversial however we should not underestimate its placebo effects.


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