Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?

Detalhes bibliográficos
Autor(a) principal: Novanta,Gabriela Guenther Ribeiro
Data de Publicação: 2020
Outros Autores: Garavelli,Sergio Luiz, Sampaio,Andre Luiz Lopes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: International Archives of Otorhinolaryngology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1809-48642020000400503
Resumo: Abstract Introduction The excessive noise observed in the school environment can cause damages or losses to the learning process as well as risks to the health of teachers and students, such as physical, mental and social impairments, including, among them, hearing loss. Objective To assess otoacoustic emissions in teachers and determine whether classroom noise reduces distortion-product otoacoustic emissions (DPOAEs) amplitude and signal-to-noise ratio (SNR). Method Sixty-seven teachers were evaluated using otoacoustic emissions testing in two situations: after hearing rest and after the working day. Results Signal amplitude (p = 0.044 [2 kHz]; p = 0.01 [4 kHz]) and SNR for frequencies of 2 kHz (p = 0.008) and 4 kHz (p = 0.001) decreased significantly between time points. Mean classroom noise was associated with the magnitude of the difference in signal amplitude at 2 kHz (p = 0.017) and 4 kHz (p = 0.015), and SNR at 4 kHz (p = 0.023). Conclusions There was a decrease in the amplitude and in the SNR after exposure to the noise in the classroom environment. The high levels of sound pressure that teachers are exposed to on a daily basis can cause a temporary change in the outer hair cells of the Corti organ, and these changes may become permanent over time.
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spelling Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?noisefacultyotoacoustic emissionsspontaneousAbstract Introduction The excessive noise observed in the school environment can cause damages or losses to the learning process as well as risks to the health of teachers and students, such as physical, mental and social impairments, including, among them, hearing loss. Objective To assess otoacoustic emissions in teachers and determine whether classroom noise reduces distortion-product otoacoustic emissions (DPOAEs) amplitude and signal-to-noise ratio (SNR). Method Sixty-seven teachers were evaluated using otoacoustic emissions testing in two situations: after hearing rest and after the working day. Results Signal amplitude (p = 0.044 [2 kHz]; p = 0.01 [4 kHz]) and SNR for frequencies of 2 kHz (p = 0.008) and 4 kHz (p = 0.001) decreased significantly between time points. Mean classroom noise was associated with the magnitude of the difference in signal amplitude at 2 kHz (p = 0.017) and 4 kHz (p = 0.015), and SNR at 4 kHz (p = 0.023). Conclusions There was a decrease in the amplitude and in the SNR after exposure to the noise in the classroom environment. The high levels of sound pressure that teachers are exposed to on a daily basis can cause a temporary change in the outer hair cells of the Corti organ, and these changes may become permanent over time.Fundação Otorrinolaringologia2020-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1809-48642020000400503International Archives of Otorhinolaryngology v.24 n.4 2020reponame:International Archives of Otorhinolaryngologyinstname:Fundação Otorrinolaringologia (FORL)instacron:FORL10.1055/s-0040-1702969info:eu-repo/semantics/openAccessNovanta,Gabriela Guenther RibeiroGaravelli,Sergio LuizSampaio,Andre Luiz Lopeseng2020-11-13T00:00:00Zoai:scielo:S1809-48642020000400503Revistahttps://www.scielo.br/j/iao/https://old.scielo.br/oai/scielo-oai.php||iaorl@iaorl.org||archives@internationalarchivesent.org||arquivos@forl.org.br1809-48641809-4864opendoar:2020-11-13T00:00International Archives of Otorhinolaryngology - Fundação Otorrinolaringologia (FORL)false
dc.title.none.fl_str_mv Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?
title Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?
spellingShingle Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?
Novanta,Gabriela Guenther Ribeiro
noise
faculty
otoacoustic emissions
spontaneous
title_short Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?
title_full Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?
title_fullStr Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?
title_full_unstemmed Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?
title_sort Is the Level of Noise in a School Environment be Harmful to the Hearing of Teachers?
author Novanta,Gabriela Guenther Ribeiro
author_facet Novanta,Gabriela Guenther Ribeiro
Garavelli,Sergio Luiz
Sampaio,Andre Luiz Lopes
author_role author
author2 Garavelli,Sergio Luiz
Sampaio,Andre Luiz Lopes
author2_role author
author
dc.contributor.author.fl_str_mv Novanta,Gabriela Guenther Ribeiro
Garavelli,Sergio Luiz
Sampaio,Andre Luiz Lopes
dc.subject.por.fl_str_mv noise
faculty
otoacoustic emissions
spontaneous
topic noise
faculty
otoacoustic emissions
spontaneous
description Abstract Introduction The excessive noise observed in the school environment can cause damages or losses to the learning process as well as risks to the health of teachers and students, such as physical, mental and social impairments, including, among them, hearing loss. Objective To assess otoacoustic emissions in teachers and determine whether classroom noise reduces distortion-product otoacoustic emissions (DPOAEs) amplitude and signal-to-noise ratio (SNR). Method Sixty-seven teachers were evaluated using otoacoustic emissions testing in two situations: after hearing rest and after the working day. Results Signal amplitude (p = 0.044 [2 kHz]; p = 0.01 [4 kHz]) and SNR for frequencies of 2 kHz (p = 0.008) and 4 kHz (p = 0.001) decreased significantly between time points. Mean classroom noise was associated with the magnitude of the difference in signal amplitude at 2 kHz (p = 0.017) and 4 kHz (p = 0.015), and SNR at 4 kHz (p = 0.023). Conclusions There was a decrease in the amplitude and in the SNR after exposure to the noise in the classroom environment. The high levels of sound pressure that teachers are exposed to on a daily basis can cause a temporary change in the outer hair cells of the Corti organ, and these changes may become permanent over time.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1809-48642020000400503
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1809-48642020000400503
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1055/s-0040-1702969
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Fundação Otorrinolaringologia
publisher.none.fl_str_mv Fundação Otorrinolaringologia
dc.source.none.fl_str_mv International Archives of Otorhinolaryngology v.24 n.4 2020
reponame:International Archives of Otorhinolaryngology
instname:Fundação Otorrinolaringologia (FORL)
instacron:FORL
instname_str Fundação Otorrinolaringologia (FORL)
instacron_str FORL
institution FORL
reponame_str International Archives of Otorhinolaryngology
collection International Archives of Otorhinolaryngology
repository.name.fl_str_mv International Archives of Otorhinolaryngology - Fundação Otorrinolaringologia (FORL)
repository.mail.fl_str_mv ||iaorl@iaorl.org||archives@internationalarchivesent.org||arquivos@forl.org.br
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