Characterization of different paresthesias following orthognathic surgery of the mandible

Seo, Kenji; Tanaka, Yutaka; Terumitsu, Makoto; Someya, Genji

doi:10.1016/j.joms.2004.07.015

Cited by 37 publications

(28 citation statements)

References 22 publications

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“…The MN exits the mandible through the mental foramen, divides into three branches deep to the depressor anguli, oris muscle, and supplies the skin and mucous membrane of the lower lip, the skin of the chin, and the vestibular gingiva of the mandibular incisor (Standring et al, 2005;Moore, 1983;April, 1990;Woodburne & Burkel 1994). The MN is significant during surgical procedures of, the chin area such as genioplasty and mandibular anterior segmented osteotomy (Westermark et al,1998;Seo et al, 2005;Gilbert & Dickerson 1981), and it can also be damaged during dental procedures such as dental implant surgery, orthodontic treatment, and endodontic treatment. Mental neuropathy also may be caused by systemic diseases and tumors (Bodner et al, 1989;Klokkevold et al, 1989;Chand et al, 1997).…”

Section: Anatomy Of the Mandibular Nervementioning

confidence: 99%

Oral Territorial Neurovascular Considerations in Implant Surgery

Karaçaylı¹,

Mas²

2011

Implant Dentistry - A Rapidly Evolving Practice

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Section: Anatomy Of the Mandibular Nervementioning

confidence: 99%

Oral Territorial Neurovascular Considerations in Implant Surgery

Karaçaylı¹,

Mas²

2011

Implant Dentistry - A Rapidly Evolving Practice

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“…Knowl-edge of intraosseous position, course, and branches of the IAN has strategic importance for clinical dental procedures in terms of aiding in diagnosis, treatment planning, and surgery. The IAN is vulnerable during dental implant surgery, orthodontic treatment, endodontic treatment (Krogstad and Omland, 1997;Babbush, 1998;Di Lenarda et al, 2000;Morrison et al, 2002;Willy et al, 2004;Zmener, 2004), and mandibular anterior segmental osteotomy (Jääskeläinen et al, 1996;Westermark et al, 1998;Seo et al, 2005). The increasing popularity of implant placement has made this a routine modality of dental care.…”

Section: Introductionmentioning

confidence: 99%

The position of the mandibular canal and histologic feature of the inferior alveolar nerve

et al. 2009

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The inferior alveolar nerve is the one of the large branches of the mandibular division of the trigeminal nerve. It is vulnerable during surgical procedures of the mandible. Despite its importance, no anatomical and histological examination has been conducted to provide a detailed cross-sectional morphology of the mandibular canal according to dental status. Therefore, the present study aimed to identify the position of the mandibular canal through direct measurement and to determine the branches of the inferior alveolar nerve through histologic examination. The area between the anterior margin of the third molar and the anterior margin of the second premolar of dentulous, partially dentulous, and edentulous hemimandible specimens (n = 49) from 26 human cadavers was serially sectioned into seven segments, and specific distances were measured using digital calipers. Following this, 5-microm cross-sections were prepared along the mandibular canal and mental foramen, and examined by fluorescence microscopy. The mandibular canal was located at a mean distance of 10.52 mm above the inferior margin of the mandible. The mean maximum diameters of the mandibular canal, inferior alveolar nerve, inferior alveolar artery, and inferior alveolar vein were 2.52, 1.84, 0.42, and 0.58 mm, respectively. This study found that the inferior alveolar nerve often gives rise to several branches at each level (range 0-3). To minimize the risk of injury, knowledge of the small branches of the nerve and of the detailed findings regarding the position of the mandibular canal reported here should be considered when planning mandibular surgery, especially during implant placement.

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“…[1][2][3][4][5][6][7] Damage to the IAN has been related to deep impactions, horizontal angulations, less experienced surgeons and the close anatomic relationship between the third molar root and the mandibular canal. [15][16][17][18] IAN injury can result from a number of different actions: a direct action such as the use of elevators or burs, if the drilling reaches the nerve, and an indirect action owing to the compression of the IAN from haemorrhage and/or inflammation.…”

Section: Discussionmentioning

confidence: 99%

“…The inferior alveolar nerve (IAN), a branch of the mandibular nerve, is at risk of injury that may occur in tumours, trauma and several orofacial surgical procedures such as extraction of the mandibular third molar, 1 orthognathic surgery of the mandible, 2 root canal treatment, 3 block anaesthesia and dental implant surgery. 4,5 The damage of the IAN may result in neurosensory impairment ranging from complete anaesthesia to more common partial loss of sensitivity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

3.0 Tesla MRI in the early evaluation of inferior alveolar nerve neurological complications after mandibular third molar extraction: a prospective study

Cassetta¹,

Barchetti

Sorrentino

et al. 2014

Dentomaxillofacial Radiology

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Objectives: To evaluate the use of 3.0 T MRI in the prognosis of inferior alveolar nerve (IAN) sensory disorders after mandibular third molar extraction, in the early post-operative period. Methods: 343 IANs were examined before and 3 days after surgery. Two radiologists evaluated the course of the nerve and the relative signal intensity (RSI). Cohen's kappa coefficient (k) and intraclass correlation coefficient (ICC) were used to evaluate the interobserver (k 5 0.891) and intra-observer variability (ICC 5 0.927; 0.914, respectively). The IANs were divided into four groups on the basis of neurosensory disorders recovery time. ANOVA was used to evaluate the differences among the RSIs of the four groups, and multiple comparisons were performed with Tukey's range test. Results: No differences in the course of IANs were found before and after surgery. In 280 IANs, no iatrogenic paraesthesia was found (Group A). 63 IANs showed a neurosensory impairment. 38 IANs showed recovery of post-operative paraesthesia at 3-month follow-up (Group B). 16 IANs showed a full recovery of iatrogenic paraesthesia at 6-month follow-up (Group C). Seven IANs displayed a full recovery at 12-month follow-up and two IANs showed persistence of neurosensory disorders at 18-month follow-up (Group D). The one-way ANOVA results indicated statistically significant difference among all groups (p , 0.05), except between Groups C and D (p 5 0.504). Conclusions: The early evaluation of RSI values represents a valid tool to determine the prognosis of IAN sensory disorders after mandibular third molar extraction.

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Characterization of different paresthesias following orthognathic surgery of the mandible

Cited by 37 publications

References 22 publications

Oral Territorial Neurovascular Considerations in Implant Surgery

Oral Territorial Neurovascular Considerations in Implant Surgery

The position of the mandibular canal and histologic feature of the inferior alveolar nerve

3.0 Tesla MRI in the early evaluation of inferior alveolar nerve neurological complications after mandibular third molar extraction: a prospective study

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