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How Does the Use of an Intraoral Scanner Affect Muscle Fatigue? A Preliminary In Vivo Study

The purpose of this study was to evaluate muscle activation and fatigue in the operator during tooth preparation and intraoral scanning by simulating these tasks in two types of dental unit chair systems (UCS). Six participants were recruited, and the above tasks were simulated. Electrodes were plac...

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Autores principales: Son, KeunBaDa, Lee, Ji-Min, Son, Young-Tak, Kim, Jin-Wook, Jin, Myoung-Uk, Lee, Kyu-Bok
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9404896/
https://www.ncbi.nlm.nih.gov/pubmed/36004883
http://dx.doi.org/10.3390/bioengineering9080358
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author Son, KeunBaDa
Lee, Ji-Min
Son, Young-Tak
Kim, Jin-Wook
Jin, Myoung-Uk
Lee, Kyu-Bok
author_facet Son, KeunBaDa
Lee, Ji-Min
Son, Young-Tak
Kim, Jin-Wook
Jin, Myoung-Uk
Lee, Kyu-Bok
author_sort Son, KeunBaDa
collection PubMed
description The purpose of this study was to evaluate muscle activation and fatigue in the operator during tooth preparation and intraoral scanning by simulating these tasks in two types of dental unit chair systems (UCS). Six participants were recruited, and the above tasks were simulated. Electrodes were placed on the skin over five types of muscles (arm, neck, and shoulder muscles), and the maximal voluntary contraction (MVC) was measured. Electromyography (EMG) was assessed during the simulation, and EMG values were normalized using MVC. The root mean square (RMS) EMG (%MVC) and muscle fatigue (%) were calculated. Owing to a lack of normal distribution of the data, Mann–Whitney U test and Kruskal–Wallis H test were performed for statistical comparison, and Bonferroni adjustment was performed for multiple comparisons (α = 0.05). There was no significant difference in RMS EMG between the two types of dental UCS (intraoral scanning, p = 0.237; tooth preparation, p = 0.543). Moreover, the RMS EMG and muscle fatigue were not significantly different between the two tasks (p > 0.05). There was significant muscle fatigue after the intraoral scanner use was simulated thrice (p < 0.001). It is necessary to refrain from performing continuous intraoral scanning and tooth preparation and to take appropriate rest to reduce the incidence of musculoskeletal disorders in dentists in clinical settings.
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spelling pubmed-94048962022-08-26 How Does the Use of an Intraoral Scanner Affect Muscle Fatigue? A Preliminary In Vivo Study Son, KeunBaDa Lee, Ji-Min Son, Young-Tak Kim, Jin-Wook Jin, Myoung-Uk Lee, Kyu-Bok Bioengineering (Basel) Article The purpose of this study was to evaluate muscle activation and fatigue in the operator during tooth preparation and intraoral scanning by simulating these tasks in two types of dental unit chair systems (UCS). Six participants were recruited, and the above tasks were simulated. Electrodes were placed on the skin over five types of muscles (arm, neck, and shoulder muscles), and the maximal voluntary contraction (MVC) was measured. Electromyography (EMG) was assessed during the simulation, and EMG values were normalized using MVC. The root mean square (RMS) EMG (%MVC) and muscle fatigue (%) were calculated. Owing to a lack of normal distribution of the data, Mann–Whitney U test and Kruskal–Wallis H test were performed for statistical comparison, and Bonferroni adjustment was performed for multiple comparisons (α = 0.05). There was no significant difference in RMS EMG between the two types of dental UCS (intraoral scanning, p = 0.237; tooth preparation, p = 0.543). Moreover, the RMS EMG and muscle fatigue were not significantly different between the two tasks (p > 0.05). There was significant muscle fatigue after the intraoral scanner use was simulated thrice (p < 0.001). It is necessary to refrain from performing continuous intraoral scanning and tooth preparation and to take appropriate rest to reduce the incidence of musculoskeletal disorders in dentists in clinical settings. MDPI 2022-08-01 /pmc/articles/PMC9404896/ /pubmed/36004883 http://dx.doi.org/10.3390/bioengineering9080358 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Son, KeunBaDa
Lee, Ji-Min
Son, Young-Tak
Kim, Jin-Wook
Jin, Myoung-Uk
Lee, Kyu-Bok
How Does the Use of an Intraoral Scanner Affect Muscle Fatigue? A Preliminary In Vivo Study
title How Does the Use of an Intraoral Scanner Affect Muscle Fatigue? A Preliminary In Vivo Study
title_full How Does the Use of an Intraoral Scanner Affect Muscle Fatigue? A Preliminary In Vivo Study
title_fullStr How Does the Use of an Intraoral Scanner Affect Muscle Fatigue? A Preliminary In Vivo Study
title_full_unstemmed How Does the Use of an Intraoral Scanner Affect Muscle Fatigue? A Preliminary In Vivo Study
title_short How Does the Use of an Intraoral Scanner Affect Muscle Fatigue? A Preliminary In Vivo Study
title_sort how does the use of an intraoral scanner affect muscle fatigue? a preliminary in vivo study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9404896/
https://www.ncbi.nlm.nih.gov/pubmed/36004883
http://dx.doi.org/10.3390/bioengineering9080358
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