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http://dx.doi.org/10.5395/rde.2012.37.4.232

Hypoesthesia after IAN block anesthesia with lidocaine: management of mild to moderate nerve injury  

Moon, Sungjoo (Department of Conservative Dentistry, Yonsei University College of Dentistry)
Lee, Seung-Jong (Department of Conservative Dentistry, Yonsei University College of Dentistry)
Kim, Euiseong (Department of Conservative Dentistry, Yonsei University College of Dentistry)
Lee, Chan-Young (Department of Conservative Dentistry, Yonsei University College of Dentistry)
Publication Information
Restorative Dentistry and Endodontics / v.37, no.4, 2012 , pp. 232-235 More about this Journal
Abstract
Hypoesthesia after an inferior alveolar nerve (IAN) block does not commonly occur, but some cases are reported. The causes of hypoesthesia include a needle injury or toxicity of local anesthetic agents, and the incidence itself can cause stress to both dentists and patients. This case presents a hypoesthesia on mental nerve area followed by IAN block anesthesia with 2% lidocaine. Prescription of steroids for a week was performed and periodic follow up was done. After 1 wk, the symptoms got much better and after 4 mon, hypoesthesia completely disappeared. During this healing period, only early steroid medication was prescribed. In most cases, hypoesthesia is resolved within 6 mon, but being aware of etiology and the treatment options of hypoesthesia is important. Because the hypoesthesia caused by IAN block anesthesia is a mild to moderate nerve injury, early detection of symptom and prescription of steroids could be helpful for improvement of the hypoesthesia.
Keywords
Hypoesthesia; Inferior alveolar nerve block; Lidocaine; Local anesthetics; Medication;
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