Changes in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.

This study aimed to evaluate improvement of tongue-palatal contact patterns during swallowing after orthognathic surgery in mandibular prognathism patients. Thirty patients with mandibular prognathism treated by orthognathic surgery (average age of 27 years, 3 months) and 10 controls (average age 29...

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Autores principales:	Haruka Kagawa, Masato Kaku, Taeko Yamamoto, Yuka Yashima, Hiromi Sumi, Takashi Kamiya, Ichiro Yamamoto, Kotaro Tanimoto
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/50edae59e8354172b7bb2a317825e8ab
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spelling	oai:doaj.org-article:50edae59e8354172b7bb2a317825e8ab2021-11-25T06:19:07ZChanges in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.1932-620310.1371/journal.pone.0251759https://doaj.org/article/50edae59e8354172b7bb2a317825e8ab2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0251759https://doaj.org/toc/1932-6203This study aimed to evaluate improvement of tongue-palatal contact patterns during swallowing after orthognathic surgery in mandibular prognathism patients. Thirty patients with mandibular prognathism treated by orthognathic surgery (average age of 27 years, 3 months) and 10 controls (average age 29 years, 6 months) participated in this study. Tongue-palatal contact patterns of patients before and three months after surgery were evaluated by electropalatography (EPG) as well as controls. Whole total of tongue-palatal contact at 0.3, 0.2, and 0.1 sec before complete tongue-palatal contact during swallowing were evaluated. The duration of swallowing phases was also examined. Complete contact of tongue-tip in the alveolar part of individual artificial EPG plate were shown at 0.3, 0.2, and 0.1 sec before complete tongue-palatal contact in the controls, although incomplete contact in the alveolar part were shown at 0.3 sec in mandibular prognathism patients. Whole total of tongue-palatal contact at 0.3 and 0.2 sec before complete tongue-palatal contact was significantly lower in the patients before surgery than in the controls (p<0.05). However, these values increased after surgery. The duration of oral and pharyngeal phase was significantly longer in the patients before surgery than in the controls and the patients after surgery (p<0.01). This study demonstrated that the tongue-palatal contact pattern improved and the duration of oral and pharyngeal phase was shortened in mandibular prognathism patients during swallowing after orthognathic surgery. It is suggested that changes in maxillofacial morphology by orthognathic surgery can induce normal tongue movement during swallowing. (The data underlying this study have been uploaded to figshare and are accessible using the following DOI: https://doi.org/10.6084/m9.figshare.14101616.v1).Haruka KagawaMasato KakuTaeko YamamotoYuka YashimaHiromi SumiTakashi KamiyaIchiro YamamotoKotaro TanimotoPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 5, p e0251759 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Haruka Kagawa Masato Kaku Taeko Yamamoto Yuka Yashima Hiromi Sumi Takashi Kamiya Ichiro Yamamoto Kotaro Tanimoto Changes in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.
description	This study aimed to evaluate improvement of tongue-palatal contact patterns during swallowing after orthognathic surgery in mandibular prognathism patients. Thirty patients with mandibular prognathism treated by orthognathic surgery (average age of 27 years, 3 months) and 10 controls (average age 29 years, 6 months) participated in this study. Tongue-palatal contact patterns of patients before and three months after surgery were evaluated by electropalatography (EPG) as well as controls. Whole total of tongue-palatal contact at 0.3, 0.2, and 0.1 sec before complete tongue-palatal contact during swallowing were evaluated. The duration of swallowing phases was also examined. Complete contact of tongue-tip in the alveolar part of individual artificial EPG plate were shown at 0.3, 0.2, and 0.1 sec before complete tongue-palatal contact in the controls, although incomplete contact in the alveolar part were shown at 0.3 sec in mandibular prognathism patients. Whole total of tongue-palatal contact at 0.3 and 0.2 sec before complete tongue-palatal contact was significantly lower in the patients before surgery than in the controls (p<0.05). However, these values increased after surgery. The duration of oral and pharyngeal phase was significantly longer in the patients before surgery than in the controls and the patients after surgery (p<0.01). This study demonstrated that the tongue-palatal contact pattern improved and the duration of oral and pharyngeal phase was shortened in mandibular prognathism patients during swallowing after orthognathic surgery. It is suggested that changes in maxillofacial morphology by orthognathic surgery can induce normal tongue movement during swallowing. (The data underlying this study have been uploaded to figshare and are accessible using the following DOI: https://doi.org/10.6084/m9.figshare.14101616.v1).
format	article
author	Haruka Kagawa Masato Kaku Taeko Yamamoto Yuka Yashima Hiromi Sumi Takashi Kamiya Ichiro Yamamoto Kotaro Tanimoto
author_facet	Haruka Kagawa Masato Kaku Taeko Yamamoto Yuka Yashima Hiromi Sumi Takashi Kamiya Ichiro Yamamoto Kotaro Tanimoto
author_sort	Haruka Kagawa
title	Changes in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.
title_short	Changes in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.
title_full	Changes in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.
title_fullStr	Changes in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.
title_full_unstemmed	Changes in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.
title_sort	changes in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/50edae59e8354172b7bb2a317825e8ab
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Changes in tongue-palatal contact during swallowing in patients with skeletal mandibular prognathism after orthognathic surgery.

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