Mental nerve sensory deficits after intraoral inverted L ramus and sagittal splitting ramus osteotomy.

DOI 15 References
  • MIYATE Hiroki
    First Department of Oral and Maxillofacial Surgery, School of Dentistry, Iwate Medical University
  • YOKOTA Mitsumasa
    First Department of Oral and Maxillofacial Surgery, School of Dentistry, Iwate Medical University
  • KUDO Keigo
    Department of Dentistry, Morioka Municipal Hospital
  • SATOH Kazurou
    Department of Orthodontics, School of Dentistry, Iwate Medical University
  • MIURA Hiroyuki
    Department of Orthodontics, School of Dentistry, Iwate Medical University
  • MIZUKI Harumi
    First Department of Oral and Maxillofacial Surgery, School of Dentistry, Iwate Medical University

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  • 下顎枝逆Ｌ字型骨切りと矢状分割術々後のオトガイ神経知覚異常について

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Abstract

Neurosensory function in the mental nerve region of 24 patients who had undergone intraoral inverted L ramus and sagittal splitting ramus osteotomy was assessed by evaluating light touch perception. Neuropathy was present in 67% of the 48 mental nerves examined. The incidence and recovery period of neuropathy on the side undergoing inverted L ramus osteotomy were similar to those on the side undergoing sagittal splitting ramus osteotomy. Our results suggest that dissection of the periosteum around the mandibular foramen might be a main cause of neurosensory deficits of the mental nerve after mandibular osteotomy.

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