Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study
Purpose: To investigate short- and long-term post-surgical three-dimensional changes of pharyngeal airway morphology and hyoid bone position in dento-skeletal class II deformity patients after two-jaw surgery with segmentation. Methods: Relations between skeletal movement, hyoid bone position and th...
Published in: | Journal of Stomatology, Oral and Maxillofacial Surgery |
---|---|
Main Author: | |
Format: | Article |
Language: | English |
Published: |
Elsevier Masson SAS
2018
|
Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051749259&doi=10.1016%2fj.jormas.2018.07.004&partnerID=40&md5=40f0c42bd852d50a5a8a2e9fd9fff179 |
id |
2-s2.0-85051749259 |
---|---|
spelling |
2-s2.0-85051749259 Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A. Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study 2018 Journal of Stomatology, Oral and Maxillofacial Surgery 119 6 10.1016/j.jormas.2018.07.004 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051749259&doi=10.1016%2fj.jormas.2018.07.004&partnerID=40&md5=40f0c42bd852d50a5a8a2e9fd9fff179 Purpose: To investigate short- and long-term post-surgical three-dimensional changes of pharyngeal airway morphology and hyoid bone position in dento-skeletal class II deformity patients after two-jaw surgery with segmentation. Methods: Relations between skeletal movement, hyoid bone position and three-dimensional pharyngeal airway changes were retrospectively analyzed on pre- and post-surgical CBCTs in dento-skeletal class II patients who underwent orthognathic two-jaw surgery with segmentation. Results: While long-term significant reductions in length (P = 0.003), surface area (P = 0.042) and volume (P = 0.004) were found in the nasopharynx, the highly significant increases in oropharyngeal airway length, surface area, volume and the minimal cross-sectional area (P < 0.05) prevailed only in the short-term. Although a significant antero-superior movement of the hyoid bone was detected both in short- and long-term follow-up CBCTs (P < 0.05), only its superior, but not the anterior movement was found to be associated with an increased lateral width of the oropharyngeal minimal cross-sectional area. Conclusion: Two-jaw orthognathic surgery with segmentations in dento-skeletal class II patients improved oropharyngeal airway parameters significantly in the short-, but not long-term. © 2018 Elsevier Masson SAS Elsevier Masson SAS 24687855 English Article |
author |
Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A. |
spellingShingle |
Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A. Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study |
author_facet |
Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A. |
author_sort |
Tan. S.K.; Tang A.T.H.; Leung W.K.; Zwahlen R.A. |
title |
Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study |
title_short |
Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study |
title_full |
Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study |
title_fullStr |
Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study |
title_full_unstemmed |
Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study |
title_sort |
Three-dimensional pharyngeal airway changes in dento-skeletal class II patients after two-jaw orthognathic surgery with segmentation – a pilot study |
publishDate |
2018 |
container_title |
Journal of Stomatology, Oral and Maxillofacial Surgery |
container_volume |
119 |
container_issue |
6 |
doi_str_mv |
10.1016/j.jormas.2018.07.004 |
url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051749259&doi=10.1016%2fj.jormas.2018.07.004&partnerID=40&md5=40f0c42bd852d50a5a8a2e9fd9fff179 |
description |
Purpose: To investigate short- and long-term post-surgical three-dimensional changes of pharyngeal airway morphology and hyoid bone position in dento-skeletal class II deformity patients after two-jaw surgery with segmentation. Methods: Relations between skeletal movement, hyoid bone position and three-dimensional pharyngeal airway changes were retrospectively analyzed on pre- and post-surgical CBCTs in dento-skeletal class II patients who underwent orthognathic two-jaw surgery with segmentation. Results: While long-term significant reductions in length (P = 0.003), surface area (P = 0.042) and volume (P = 0.004) were found in the nasopharynx, the highly significant increases in oropharyngeal airway length, surface area, volume and the minimal cross-sectional area (P < 0.05) prevailed only in the short-term. Although a significant antero-superior movement of the hyoid bone was detected both in short- and long-term follow-up CBCTs (P < 0.05), only its superior, but not the anterior movement was found to be associated with an increased lateral width of the oropharyngeal minimal cross-sectional area. Conclusion: Two-jaw orthognathic surgery with segmentations in dento-skeletal class II patients improved oropharyngeal airway parameters significantly in the short-, but not long-term. © 2018 Elsevier Masson SAS |
publisher |
Elsevier Masson SAS |
issn |
24687855 |
language |
English |
format |
Article |
accesstype |
|
record_format |
scopus |
collection |
Scopus |
_version_ |
1809677905863639040 |