Sensory innervation of mandibular teeth by the nerve to the mylohyoid: Implications in local anesthesia
Version of Record online: 12 MAR 2007
Copyright © 2007 Wiley-Liss, Inc.
Volume 20, Issue 6, pages 591–595, August 2007
How to Cite
Stein, P., Brueckner, J. and Milliner, M. (2007), Sensory innervation of mandibular teeth by the nerve to the mylohyoid: Implications in local anesthesia. Clin. Anat., 20: 591–595. doi: 10.1002/ca.20479
- Issue online: 10 AUG 2007
- Version of Record online: 12 MAR 2007
- Manuscript Accepted: 24 JAN 2007
- Manuscript Revised: 8 JAN 2007
- Manuscript Received: 1 AUG 2006
- oral surgery;
- dental injections;
Traditionally, the nerve to the mylohyoid has been considered a motor nerve. However, dissection and clinical studies have challenged this dogma implicating the nerve to the mylohyoid as a nerve of accessory sensory innervation to mandibular teeth. Within the infratemporal fossa, the nerve to the mylohyoid branches from the inferior alveolar nerve and may be anesthetized with an inferior alveolar nerve block. However, because of the variability in location of branching and the potential barriers formed by both the pterygomandibular fascia and the sphenomandibular ligament, the nerve to the mylohyoid may escape anesthesia in an inferior alveolar nerve block. This may prevent profound local anesthesia of the mandibular teeth and may account, at least in part, for the high failure rate of the inferior alveolar nerve block. Alternative local anesthesia procedures may be employed to ensure adequate anesthesia of the nerve to the mylohyoid is achieved. This review provides a background of anatomical and clinical research of the nerve to the mylohyoid and outlines techniques suggested for providing a neural blockade of the nerve to the mylohyoid. Clin. Anat. 20:591–595, 2007. © 2007 Wiley-Liss, Inc.