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Inferior alveolar nerve anaesthesia information


Inferior alveolar nerve block (abbreviated to IANB, and also termed inferior alveolar nerve anesthesia or inferior dental block) is a nerve block technique which induces anesthesia (numbness) in the areas of the mouth and face innervated by one of the inferior alveolar nerves which are paired on the left and right side. These areas are the skin and mucous membranes of the lower lip, the skin of the chin, the lower teeth and the labial gingiva of the anterior teeth, all unilaterally to the midline of the side on which the block is administered.[1] However, depending on technique, the long buccal nerve may not be [2] anesthetized by an IANB and therefore an area of buccal gingiva adjacent to the lower posterior teeth will retain normal sensation unless that nerve is anesthetized separately, via a (long) buccal nerve block. The inferior alveolar nerve is a branch of the mandibular nerve, the third division of the trigeminal nerve. This procedure attempts to anaesthetise the inferior alveolar nerve prior to it entering the mandibular foramen on the medial surface of the mandibular ramus.[citation needed]

  1. ^ Agur, Anne M.R., and Arthur F. Dalley. Grant's Atlas Of Anatomy. 12th ed. Maryland, USA: Lippincott Williams & Wilkins, 2009. Print.
  2. ^ Aker, F. D. (2001). "Blocking the buccal nerve using two methods of inferior alveolar block injection". Clinical Anatomy. 14 (2): 111–119. doi:10.1002/1098-2353(200103)14:2<111::AID-CA1019>3.0.CO;2-3. ISSN 0897-3806. PMID 11241746. S2CID 25873814.

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