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A study of the mandibular incisive nerve and possible causes of altered sensation following maxillofacial surgery (922.5)
Author(s) -
Ivey Danielle,
Wilson Tim,
Merrifield Peter,
Shimizu Michael,
Galil Khadry
Publication year - 2014
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.28.1_supplement.922.5
Subject(s) - mandible (arthropod mouthpart) , symphysis , medicine , mandibular nerve , mental nerve , anatomy , cadaveric spasm , mandibular symphysis , chin , dentistry , biology , molar , botany , genus
The mandibular interforaminal region is considered a safe zone for cortical bone graft harvesting. Incidence of sensory disturbance of the anterior dentition is reported following harvest at the mandibular symphysis. Anatomical understanding of the incisive nerve within the bony mandible is required to prevent nerve injury. Our study of the anatomy of the incisive nerve, its variation, and position within the mandible will provide a comprehensive map for surgeons. Thirty‐eight cadaveric mandibles will be dissected to reveal the incisive nerve within the mandibular symphysis. The nerve formation will be categorized as: Type A (trunk with branches to anterior teeth), B (a disorganized plexus), or C (nearby nerve contribution). Categorical prevalence will be compared in dentate and edentulous mandibles. A subset of mandibles will be sagittally sectioned between the mental foramina to show the incisive nerve relative to the inferior border of the mandible. Preliminary results of 11 dissected dentate mandibles reveal a prevalence of the ‘Type A’ formation between the mental foramina (8/11). Two dentate mandibles have shown ‘Type B’ formation. Dissected edentulous mandibles reveal a prevalence of ‘Type A’ formation (3/3). Elucidation of anatomical formation, variation, and position of the incisive nerve will help decrease the morbidity of incisive nerve damage and provide a better long‐term outcome for patients.