Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of applied oral science (Online) |
Texto Completo: | https://www.revistas.usp.br/jaos/article/view/3986 |
Resumo: | OBJECTIVE: This study assessed the muscular activity during root canal preparation through kinematics, kinetics, and electromyography (EMG). MATERIAL AND METHODS: The operators prepared one canal with RaCe rotary instruments and another with Flexo-files. The kinematics of the major joints was reconstructed using an optoelectronic system and electromyographic responses of the flexor carpi radialis, extensor carpi radialis, brachioradialis, biceps brachii, triceps brachii, middle deltoid, and upper trapezius were recorded. The joint torques of the shoulder, elbow and wrist were calculated using inverse dynamics. In the kinematic analysis, angular movements of the wrist and elbow were classified as low risk factors for work-related musculoskeletal disorders. With respect to the shoulder, the classification was medium-risk. RESULTS: There was no significant difference revealed by the kinetic reports. The EMG results showed that for the middle deltoid and upper trapezius the rotary instrumentation elicited higher values. The flexor carpi radialis and extensor carpi radialis, as well as the brachioradialis showed a higher value with the manual method. CONCLUSION: The muscular recruitment for accomplishment of articular movements for root canal preparation with either the rotary or manual techniques is distinct. Nevertheless, the rotary instrument presented less difficulty in the generation of the joint torque in each articulation, thus, presenting a greater uniformity of joint torques. |
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Journal of applied oral science (Online) |
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Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments KinematicsKineticsElectromyographyEndodonticsDental pulp cavity OBJECTIVE: This study assessed the muscular activity during root canal preparation through kinematics, kinetics, and electromyography (EMG). MATERIAL AND METHODS: The operators prepared one canal with RaCe rotary instruments and another with Flexo-files. The kinematics of the major joints was reconstructed using an optoelectronic system and electromyographic responses of the flexor carpi radialis, extensor carpi radialis, brachioradialis, biceps brachii, triceps brachii, middle deltoid, and upper trapezius were recorded. The joint torques of the shoulder, elbow and wrist were calculated using inverse dynamics. In the kinematic analysis, angular movements of the wrist and elbow were classified as low risk factors for work-related musculoskeletal disorders. With respect to the shoulder, the classification was medium-risk. RESULTS: There was no significant difference revealed by the kinetic reports. The EMG results showed that for the middle deltoid and upper trapezius the rotary instrumentation elicited higher values. The flexor carpi radialis and extensor carpi radialis, as well as the brachioradialis showed a higher value with the manual method. CONCLUSION: The muscular recruitment for accomplishment of articular movements for root canal preparation with either the rotary or manual techniques is distinct. Nevertheless, the rotary instrument presented less difficulty in the generation of the joint torque in each articulation, thus, presenting a greater uniformity of joint torques. Universidade de São Paulo. Faculdade de Odontologia de Bauru2012-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/398610.1590/S1678-77572012000100011Journal of Applied Oral Science; Vol. 20 No. 1 (2012); 57-63 Journal of Applied Oral Science; Vol. 20 Núm. 1 (2012); 57-63 Journal of Applied Oral Science; v. 20 n. 1 (2012); 57-63 1678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/3986/4676Copyright (c) 2012 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessPasternak-Júnior, BraulioSousa Neto, Manoel Damião deDionísio, Valdeci CarlosPécora, Jesus DjalmaSilva, Ricardo Gariba2012-04-27T12:17:35Zoai:revistas.usp.br:article/3986Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2012-04-27T12:17:35Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments |
title |
Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments |
spellingShingle |
Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments Pasternak-Júnior, Braulio Kinematics Kinetics Electromyography Endodontics Dental pulp cavity |
title_short |
Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments |
title_full |
Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments |
title_fullStr |
Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments |
title_full_unstemmed |
Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments |
title_sort |
Analysis of kinematic, kinetic and electromyographic patterns during root canal preparation with rotary and manual instruments |
author |
Pasternak-Júnior, Braulio |
author_facet |
Pasternak-Júnior, Braulio Sousa Neto, Manoel Damião de Dionísio, Valdeci Carlos Pécora, Jesus Djalma Silva, Ricardo Gariba |
author_role |
author |
author2 |
Sousa Neto, Manoel Damião de Dionísio, Valdeci Carlos Pécora, Jesus Djalma Silva, Ricardo Gariba |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Pasternak-Júnior, Braulio Sousa Neto, Manoel Damião de Dionísio, Valdeci Carlos Pécora, Jesus Djalma Silva, Ricardo Gariba |
dc.subject.por.fl_str_mv |
Kinematics Kinetics Electromyography Endodontics Dental pulp cavity |
topic |
Kinematics Kinetics Electromyography Endodontics Dental pulp cavity |
description |
OBJECTIVE: This study assessed the muscular activity during root canal preparation through kinematics, kinetics, and electromyography (EMG). MATERIAL AND METHODS: The operators prepared one canal with RaCe rotary instruments and another with Flexo-files. The kinematics of the major joints was reconstructed using an optoelectronic system and electromyographic responses of the flexor carpi radialis, extensor carpi radialis, brachioradialis, biceps brachii, triceps brachii, middle deltoid, and upper trapezius were recorded. The joint torques of the shoulder, elbow and wrist were calculated using inverse dynamics. In the kinematic analysis, angular movements of the wrist and elbow were classified as low risk factors for work-related musculoskeletal disorders. With respect to the shoulder, the classification was medium-risk. RESULTS: There was no significant difference revealed by the kinetic reports. The EMG results showed that for the middle deltoid and upper trapezius the rotary instrumentation elicited higher values. The flexor carpi radialis and extensor carpi radialis, as well as the brachioradialis showed a higher value with the manual method. CONCLUSION: The muscular recruitment for accomplishment of articular movements for root canal preparation with either the rotary or manual techniques is distinct. Nevertheless, the rotary instrument presented less difficulty in the generation of the joint torque in each articulation, thus, presenting a greater uniformity of joint torques. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-02-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/3986 10.1590/S1678-77572012000100011 |
url |
https://www.revistas.usp.br/jaos/article/view/3986 |
identifier_str_mv |
10.1590/S1678-77572012000100011 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/3986/4676 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2012 Journal of Applied Oral Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2012 Journal of Applied Oral Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Odontologia de Bauru |
dc.source.none.fl_str_mv |
Journal of Applied Oral Science; Vol. 20 No. 1 (2012); 57-63 Journal of Applied Oral Science; Vol. 20 Núm. 1 (2012); 57-63 Journal of Applied Oral Science; v. 20 n. 1 (2012); 57-63 1678-7765 1678-7757 reponame:Journal of applied oral science (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Journal of applied oral science (Online) |
collection |
Journal of applied oral science (Online) |
repository.name.fl_str_mv |
Journal of applied oral science (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||jaos@usp.br |
_version_ |
1787713192840921088 |