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Study of occlusal acoustic parameters in assessing masticatory performance

BACKGROUND: Previous masticatory studies have focused on a variety of measurements of foods and boluses or kinematic parameters and sound during mastication. To date, the masticatory sound research of has been limited due to the difficulties of sound collection and accurate analysis. Therefore, sign...

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Autores principales: Xia, Yue, Wang, Lu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8925045/
https://www.ncbi.nlm.nih.gov/pubmed/35291996
http://dx.doi.org/10.1186/s12903-021-02018-9
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author Xia, Yue
Wang, Lu
author_facet Xia, Yue
Wang, Lu
author_sort Xia, Yue
collection PubMed
description BACKGROUND: Previous masticatory studies have focused on a variety of measurements of foods and boluses or kinematic parameters and sound during mastication. To date, the masticatory sound research of has been limited due to the difficulties of sound collection and accurate analysis. Therefore, significant progress in masticatory sound has not been made. Meanwhile, the correlation between acoustic parameters and mastication performance remains unclear. For the purpose of exploring the acoustic parameters in measuring mastication performance, the bone-conduction techniques and sound analysis were used, and a statistical analysis of acoustic and occlusal parameters were conducted. METHODS: The gnathosonic and chewing sounds of fifty-six volunteers with healthy dentate were recorded by a bone-conduction microphone and further analyzed by Praat 5.4.04 when intercuspally occluding natural foods (peanuts) were consumed. The granulometry of the expectorated boluses from the peanuts was characterized by the median particle size of the whole chewing sequence (D50(a)) and the median particle size during the fixed chewing strokes (D50(b)). The chewing time of the whole chewing sequence (CT(a)), the chewing time of the fixed chewing strokes (CT(b)), the chewing cycles (CC), and the chewing frequency (CF) were recorded and analyzed by the acoustic software. The acoustic parameters, including gnathosonic pitch, gnathosonic intensity, mastication sound pitch of the whole chewing sequence (MP(a)), mastication sound pitch of the fixed chewing strokes (MP(b)), mastication sound intensity of the whole chewing sequence (MI(a)) and mastication sound intensity of the fixed chewing strokes (MI(b)), were analyzed. Independent sample t-test, Spearman and Pearson correlation analyses were used where applicable. RESULTS: Significant difference in parameters CC, MI(a), CF and D50(a) were found by sex (t-test, p < 0.01). The masticatory degree of the test foods was higher in women (CC, 24.25 ± 5.23; CF, 1.70 ± 0.21 s(−1); D50(a), 1655.07 ± 346.21 μm) than in men (CC, 18.14 ± 6.38; CF, 1.48 ± 0.18 s(−1); D50(a), 2159.21 ± 441.26 μm). In the whole chewing sequence study, a highly negative correlation was found between MI(a) and D50(a), and a highly positive correlation was found between MI(a) and CF (r =  − 0.94, r = 0.82, respectively, p < 0.01). No significant correlation was found between the remaining acoustic parameters and mastication parameters. In the fixed chewing strokes study, a highly negative correlation was found between MI(b) and D50(b) (r =  − 0.85, p < 0.01). There was no significant correlation between the rest of the acoustic parameters and the mastication parameters. CONCLUSIONS: Mastication sound intensity may be a valuable indicator for assessing mastication. Acoustic analysis can provide a more convenient and quick method of assessing mastication performance. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12903-021-02018-9.
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spelling pubmed-89250452022-03-23 Study of occlusal acoustic parameters in assessing masticatory performance Xia, Yue Wang, Lu BMC Oral Health Research BACKGROUND: Previous masticatory studies have focused on a variety of measurements of foods and boluses or kinematic parameters and sound during mastication. To date, the masticatory sound research of has been limited due to the difficulties of sound collection and accurate analysis. Therefore, significant progress in masticatory sound has not been made. Meanwhile, the correlation between acoustic parameters and mastication performance remains unclear. For the purpose of exploring the acoustic parameters in measuring mastication performance, the bone-conduction techniques and sound analysis were used, and a statistical analysis of acoustic and occlusal parameters were conducted. METHODS: The gnathosonic and chewing sounds of fifty-six volunteers with healthy dentate were recorded by a bone-conduction microphone and further analyzed by Praat 5.4.04 when intercuspally occluding natural foods (peanuts) were consumed. The granulometry of the expectorated boluses from the peanuts was characterized by the median particle size of the whole chewing sequence (D50(a)) and the median particle size during the fixed chewing strokes (D50(b)). The chewing time of the whole chewing sequence (CT(a)), the chewing time of the fixed chewing strokes (CT(b)), the chewing cycles (CC), and the chewing frequency (CF) were recorded and analyzed by the acoustic software. The acoustic parameters, including gnathosonic pitch, gnathosonic intensity, mastication sound pitch of the whole chewing sequence (MP(a)), mastication sound pitch of the fixed chewing strokes (MP(b)), mastication sound intensity of the whole chewing sequence (MI(a)) and mastication sound intensity of the fixed chewing strokes (MI(b)), were analyzed. Independent sample t-test, Spearman and Pearson correlation analyses were used where applicable. RESULTS: Significant difference in parameters CC, MI(a), CF and D50(a) were found by sex (t-test, p < 0.01). The masticatory degree of the test foods was higher in women (CC, 24.25 ± 5.23; CF, 1.70 ± 0.21 s(−1); D50(a), 1655.07 ± 346.21 μm) than in men (CC, 18.14 ± 6.38; CF, 1.48 ± 0.18 s(−1); D50(a), 2159.21 ± 441.26 μm). In the whole chewing sequence study, a highly negative correlation was found between MI(a) and D50(a), and a highly positive correlation was found between MI(a) and CF (r =  − 0.94, r = 0.82, respectively, p < 0.01). No significant correlation was found between the remaining acoustic parameters and mastication parameters. In the fixed chewing strokes study, a highly negative correlation was found between MI(b) and D50(b) (r =  − 0.85, p < 0.01). There was no significant correlation between the rest of the acoustic parameters and the mastication parameters. CONCLUSIONS: Mastication sound intensity may be a valuable indicator for assessing mastication. Acoustic analysis can provide a more convenient and quick method of assessing mastication performance. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12903-021-02018-9. BioMed Central 2022-03-15 /pmc/articles/PMC8925045/ /pubmed/35291996 http://dx.doi.org/10.1186/s12903-021-02018-9 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Xia, Yue
Wang, Lu
Study of occlusal acoustic parameters in assessing masticatory performance
title Study of occlusal acoustic parameters in assessing masticatory performance
title_full Study of occlusal acoustic parameters in assessing masticatory performance
title_fullStr Study of occlusal acoustic parameters in assessing masticatory performance
title_full_unstemmed Study of occlusal acoustic parameters in assessing masticatory performance
title_short Study of occlusal acoustic parameters in assessing masticatory performance
title_sort study of occlusal acoustic parameters in assessing masticatory performance
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8925045/
https://www.ncbi.nlm.nih.gov/pubmed/35291996
http://dx.doi.org/10.1186/s12903-021-02018-9
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