J Korean Assoc Oral Maxillofac Surg.  2001 Apr;27(2):118-128.

Morphology and topography of the lingual nerve in Koreans

Affiliations
  • 1Department of Oral & Maxillofacial Surgery, College of Dentistry, Yonsei University.

Abstract

Two major salivary glands, submandibular duct, lingual nerve, and vessels are situated beneath the mouth floor. Among these, passing through the pterygomandibular space, lingual nerve is innervated to the lingual gingiva and the mucosa of mouth floor, and is responsible for the general sensation of the anterior two thirds of the tongue. So, the injury of the lingual nerve during an anesthesia or surgery in the retromolar area may cause complications such as a numbness, a loss of taste of the tongue and the other dysfunctions. Therefore, to find out the morphology and the course of lingual nerve and to clarify the topographical relationships of lingual nerve at the infratemporal fossa and paralingual space area, 32 Korean hemi-sectioned heads were dissected macroscopically and microscopically with a viewpoint of clinical aspect in this study. This study demonstrated various anatomical characteristics with relation to the course and topography of the lingual nerve in Koreans. And clinical significances based on the anatomical variations through the topography of the courses and communications between the mandibular nerve branches were described in details.

Keyword

Lingual nerve; Inferior alveolar nerve; Chorda tympani nerve; Communication; Collateral nerve branch
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