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Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy

OBJECTIVE: This study evaluated the condition of mandibular cancellous and cortical bone on computed tomography (CT) images in order to investigate its relationship with the incidence of neurosensory disturbances (NSD) in the mental nerve region after bilateral sagittal splitting ramus osteotomy (BS...

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Autores principales: Takaku, Yuichiro, Takano, Masayuki, Yamashita, Shuichiro, Fukuda, Kenichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: S. Karger AG 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6945893/
https://www.ncbi.nlm.nih.gov/pubmed/31988915
http://dx.doi.org/10.1159/000480289
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author Takaku, Yuichiro
Takano, Masayuki
Yamashita, Shuichiro
Fukuda, Kenichi
author_facet Takaku, Yuichiro
Takano, Masayuki
Yamashita, Shuichiro
Fukuda, Kenichi
author_sort Takaku, Yuichiro
collection PubMed
description OBJECTIVE: This study evaluated the condition of mandibular cancellous and cortical bone on computed tomography (CT) images in order to investigate its relationship with the incidence of neurosensory disturbances (NSD) in the mental nerve region after bilateral sagittal splitting ramus osteotomy (BSSRO). METHODS: BSSRO was performed on 58 lateral mandibles in 29 patients. From preoperative CT images, the width endpoints of the transversal bone were measured in region I immediately inferior to the mandibular foramen, region II in the mandibular angle region, and region III distal to the lower second molar. The incidence of NSD immediately after surgery and the residual NSD rate at 1, 3, and 6 months after surgery were investigated. The correlation between incidence of NSD in the mental nerve region and each transversal bone width endpoint immediately after and at 6 months after surgery was also comparatively evaluated. RESULTS: The overall incidence of NSD immediately after surgery was 67.2% (39/58 sides) and the overall residual NSD rate at 1, 3, and 6 months after surgery was 53.4% (31/58 sides), 31.0% (18/58 sides), and 17.2% (10/58 sides), respectively. No significant differences were observed for any width endpoints of the transversal bone measured at regions I or III, but the transversal width of the entire mandible was significantly different in region II between patients with and without NSD at 6 months after surgery (p < 0.05). CONCLUSION: These findings demonstrate that the transversal width of the entire mandible may be an important factor in predicting NSD incidence.
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spelling pubmed-69458932020-01-27 Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy Takaku, Yuichiro Takano, Masayuki Yamashita, Shuichiro Fukuda, Kenichi Biomed Hub Research Article OBJECTIVE: This study evaluated the condition of mandibular cancellous and cortical bone on computed tomography (CT) images in order to investigate its relationship with the incidence of neurosensory disturbances (NSD) in the mental nerve region after bilateral sagittal splitting ramus osteotomy (BSSRO). METHODS: BSSRO was performed on 58 lateral mandibles in 29 patients. From preoperative CT images, the width endpoints of the transversal bone were measured in region I immediately inferior to the mandibular foramen, region II in the mandibular angle region, and region III distal to the lower second molar. The incidence of NSD immediately after surgery and the residual NSD rate at 1, 3, and 6 months after surgery were investigated. The correlation between incidence of NSD in the mental nerve region and each transversal bone width endpoint immediately after and at 6 months after surgery was also comparatively evaluated. RESULTS: The overall incidence of NSD immediately after surgery was 67.2% (39/58 sides) and the overall residual NSD rate at 1, 3, and 6 months after surgery was 53.4% (31/58 sides), 31.0% (18/58 sides), and 17.2% (10/58 sides), respectively. No significant differences were observed for any width endpoints of the transversal bone measured at regions I or III, but the transversal width of the entire mandible was significantly different in region II between patients with and without NSD at 6 months after surgery (p < 0.05). CONCLUSION: These findings demonstrate that the transversal width of the entire mandible may be an important factor in predicting NSD incidence. S. Karger AG 2017-10-13 /pmc/articles/PMC6945893/ /pubmed/31988915 http://dx.doi.org/10.1159/000480289 Text en Copyright © 2017 by S. Karger AG, Basel http://creativecommons.org/licenses/by-nc/4.0/ This article is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND) (http://www.karger.com/Services/OpenAccessLicense). Usage and distribution for commercial purposes requires written permission.
spellingShingle Research Article
Takaku, Yuichiro
Takano, Masayuki
Yamashita, Shuichiro
Fukuda, Kenichi
Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy
title Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy
title_full Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy
title_fullStr Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy
title_full_unstemmed Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy
title_short Transversal Width of Mandibular Bone and Neurosensory Disturbance after Bilateral Sagittal Splitting Ramus Osteotomy
title_sort transversal width of mandibular bone and neurosensory disturbance after bilateral sagittal splitting ramus osteotomy
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6945893/
https://www.ncbi.nlm.nih.gov/pubmed/31988915
http://dx.doi.org/10.1159/000480289
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