A comparison of postoperative hypoesthesia between two types of sagittal split ramus osteotomy and intraoral vertical ramus osteotomy, using the trigeminal somatosensory-evoked potential method

Takazakura, Daisuke; Ueki, Koichiro; Nakagawa, Kiyomasa; Marukawa, Kohei; Shimada, Masumi; Shamiul, A.; Yamamoto, Etsuhide

doi:10.1016/j.ijom.2006.09.016

Cited by 31 publications

(18 citation statements)

References 19 publications

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“…17 Our previous study using horizontal images of CT showed that the distance between the mandibular canal and the split surface correlated with TSEP latency recovery. 18 In a previous study 19 , the sagittal split area in the Obwegeser-Dal…”

Section: Discussionmentioning

confidence: 90%

Position of Mandibular Canal and Ramus Morphology Before and After Sagittal Split Ramus Osteotomy

Ueki

Okabe

Miyazaki

et al. 2010

Journal of Oral and Maxillofacial Surgery

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Purpose. The purpose of this study was to evaluate changes in the mandibular canal and ramus morphology before and after a sagittal split ramus osteotomy (SSRO). Results. Postoperative ramus width, lateral distance, lateral marrow distance and canal length were significantly larger than the pre-operative values, at the foramen, 1cm lower and 2 cm lower levels. The mandibular canal completely contacted the lateral cortex without lateral bone marrow in 6 sides (10%) in level A and B, and 4 sides (6.7%) in level C pre-operatively and 6 sides (10%) in level C post-operatively. Subjects andConclusion. This study suggested that postoperative mandibular canal position was located more posteriorly and the postoperative lateral bone marrow became thicker compared to the pre-operative state.

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Section: Discussionmentioning

confidence: 90%

Position of Mandibular Canal and Ramus Morphology Before and After Sagittal Split Ramus Osteotomy

Ueki

Okabe

Miyazaki

et al. 2010

Journal of Oral and Maxillofacial Surgery

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“…Standardization of assessment methods would facilitate the identification of diagnostic criteria for different types of neurosensory impairment. Assessment of sensory changes can be evaluated using three types of measures: (i) objective electrophysiological measures of nerve conduction, (ii) sensory testing measures and (iii) patient report (Takazakura et al, 2007). The request of replacing missing teeth with dental implants is increasing, and as a result, incidence of postoperative complications is increasing concomitantly (Kim et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Oral Territorial Neurovascular Considerations in Implant Surgery

Karaçaylı¹,

Mas²

2011

Implant Dentistry - A Rapidly Evolving Practice

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“…Takazakura et al [25], in investigating 20 sides with SSRO, reported that 40% recovered within 1 week or did not show any hypoesthesia. Overall, 65% showed hypoesthesia at 3 months postoperatively.…”

Section: Discussionmentioning

confidence: 99%

Incidence of inferior alveolar nerve affection with and without nerve exposure during bilateral sagittal split osteotomy

Sadakah

Elshall

2018

OMX

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Objective: The aim of this study was to determine the presence and severity of inferior alveolar nerve (IAN) affection during bilateral sagittal split osteotomy (BSSO) in two groups of patients with and without direct exposure and visualization of the nerve during surgical procedure. Patients and Methods: In this prospective randomized clinical study, 14 patients (28 sides) indicated for BSSO were included. The sides were randomly divided into two groups with equal number of sides (14 sides). Group I with wide soft tissue dissection of the medial side of the ramus and exposure of IAN above the ligula and group II with minimal soft tissue dissection of the medial side of the ramus without exposure of IAN. For evaluation of neurosensory function of IAN, two methods were used including subjective evaluation and two-point discrimination test. Results: According to the subjective evaluation, there was a statistically significant difference between both groups in favor of group II in all follow-up recalls except in the final one at 12 months postoperatively. Considering the results of two-point discrimination test, the improvement obviously continued during the successive follow-up periods in both groups, with a statistically significant difference in favor of group II until the ninth month, and then in the last follow-up at the 12 th month, the records were almost equal. Conclusion: To markedly reduce the postoperative neurosensory disturbances of IAV and to accelerate the full recovery of sensation of the lower lip and chin regions following BSSO, limited exposure and dissection of the medial soft tissues of the ramus should be practiced with avoidance of direct exposure and manipulation of IAN.

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A comparison of postoperative hypoesthesia between two types of sagittal split ramus osteotomy and intraoral vertical ramus osteotomy, using the trigeminal somatosensory-evoked potential method

Cited by 31 publications

References 19 publications

Position of Mandibular Canal and Ramus Morphology Before and After Sagittal Split Ramus Osteotomy

Position of Mandibular Canal and Ramus Morphology Before and After Sagittal Split Ramus Osteotomy

Oral Territorial Neurovascular Considerations in Implant Surgery

Incidence of inferior alveolar nerve affection with and without nerve exposure during bilateral sagittal split osteotomy

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