C. Stavrianos, A. Eliades, I. Stavrianou, Paresthesia of the Mental Nerve Due to Chronic Apical Periodontitis of a Non-Vital Tooth: A Case Report, Research Journal of Medical Sciences, Volume 4,Issue 2, 2010, Pages 94-97, ISSN 1815-9346, rjmsci.2010.94.97, (https://makhillpublications.co/view-article.php?doi=rjmsci.2010.94.97) Abstract: Chronic apical periodontitis of mandibular premolars and molars teeth is quite common phenomenon. In this case report, it is described an unusual case of chronic periodontitis of a right mandibular second premolar tooth in proximity to mental foramen which was the cause of a dysaesthesia in the distribution of the mental nerve. The reported symptoms of sensory disturbance disappeared 3 months after conventional endodontic treatment associated with antibiotic therapy. One year later the tooth was still asymptomatic and the resolution of mental nerve paresthesia was completed. Keywords: Mental nerve paresthesia;periapical infection;mental nerve;chronic apical periodontitis