Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case study

Detalhes bibliográficos
Autor(a) principal: Lima-Gregio,Aveliny Mantovan
Data de Publicação: 2011
Outros Autores: Marino,Viviane Cristina de Castro, Pegoraro-Krook,Maria Inês, Barbosa,Plinio Almeida, Aferri,Homero Carneiro, Dutka,Jeniffer de Cassia Rillo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of applied oral science (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600012
Resumo: The use of prosthetic devices for correction of velopharyngeal insufficiency (VPI) is an alternative treatment for patients with conditions that preclude surgery and for those individuals with a hypofunctional velopharynx (HV) with a poor prognosis for the surgical repair of VPI. Understanding the role and measuring the outcome of prosthetic treatment of velopharyngeal dysfunction requires the use of tools that allow for documenting pre- and post-treatment outcomes. Experimental openings in speech bulbs have been used for simulating VPI in studies documenting changes in aerodynamic, acoustic and kinematics aspects of speech associated with the use of palatal prosthetic devices. The use of nasometry to document changes in speech associated with experimental openings in speech bulbs, however, has not been described in the literature. Objective: This single-subject study investigated nasalance and nasality at the presence of experimental openings drilled through the speech bulb of a patient with HV. Material and Methods: Nasometric recordings of the word "pato" were obtained under 4 velopharyngeal conditions: no-opening (control condition), no speech bulb, speech bulb with a 20 mm² opening, and speech bulb with 30 mm² opening. Five speech-language pathologists performed auditory-perceptual ratings while the subject read an oral passage under all conditions. Results: Kruskal-Wallis test showed significant difference among conditions (p=0.0002), with Scheffé post hoc test indicating difference from the no-opening condition. Conclusion: The changes in nasalance observed after drilling holes of known sizes in a speech bulb suggest that nasometry reflect changes in transfer of sound energy related to different sizes of velopharyngeal opening.
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spelling Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case studySpeech acousticsPalatal obturatorsCleft palateThe use of prosthetic devices for correction of velopharyngeal insufficiency (VPI) is an alternative treatment for patients with conditions that preclude surgery and for those individuals with a hypofunctional velopharynx (HV) with a poor prognosis for the surgical repair of VPI. Understanding the role and measuring the outcome of prosthetic treatment of velopharyngeal dysfunction requires the use of tools that allow for documenting pre- and post-treatment outcomes. Experimental openings in speech bulbs have been used for simulating VPI in studies documenting changes in aerodynamic, acoustic and kinematics aspects of speech associated with the use of palatal prosthetic devices. The use of nasometry to document changes in speech associated with experimental openings in speech bulbs, however, has not been described in the literature. Objective: This single-subject study investigated nasalance and nasality at the presence of experimental openings drilled through the speech bulb of a patient with HV. Material and Methods: Nasometric recordings of the word "pato" were obtained under 4 velopharyngeal conditions: no-opening (control condition), no speech bulb, speech bulb with a 20 mm² opening, and speech bulb with 30 mm² opening. Five speech-language pathologists performed auditory-perceptual ratings while the subject read an oral passage under all conditions. Results: Kruskal-Wallis test showed significant difference among conditions (p=0.0002), with Scheffé post hoc test indicating difference from the no-opening condition. Conclusion: The changes in nasalance observed after drilling holes of known sizes in a speech bulb suggest that nasometry reflect changes in transfer of sound energy related to different sizes of velopharyngeal opening.Faculdade De Odontologia De Bauru - USP2011-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600012Journal of Applied Oral Science v.19 n.6 2011reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S1678-77572011000600012info:eu-repo/semantics/openAccessLima-Gregio,Aveliny MantovanMarino,Viviane Cristina de CastroPegoraro-Krook,Maria InêsBarbosa,Plinio AlmeidaAferri,Homero CarneiroDutka,Jeniffer de Cassia Rilloeng2012-03-06T00:00:00Zoai:scielo:S1678-77572011000600012Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2012-03-06T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case study
title Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case study
spellingShingle Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case study
Lima-Gregio,Aveliny Mantovan
Speech acoustics
Palatal obturators
Cleft palate
title_short Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case study
title_full Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case study
title_fullStr Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case study
title_full_unstemmed Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case study
title_sort Nasalance and nasality at experimental velopharyngeal openings in palatal prosthesis: a case study
author Lima-Gregio,Aveliny Mantovan
author_facet Lima-Gregio,Aveliny Mantovan
Marino,Viviane Cristina de Castro
Pegoraro-Krook,Maria Inês
Barbosa,Plinio Almeida
Aferri,Homero Carneiro
Dutka,Jeniffer de Cassia Rillo
author_role author
author2 Marino,Viviane Cristina de Castro
Pegoraro-Krook,Maria Inês
Barbosa,Plinio Almeida
Aferri,Homero Carneiro
Dutka,Jeniffer de Cassia Rillo
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Lima-Gregio,Aveliny Mantovan
Marino,Viviane Cristina de Castro
Pegoraro-Krook,Maria Inês
Barbosa,Plinio Almeida
Aferri,Homero Carneiro
Dutka,Jeniffer de Cassia Rillo
dc.subject.por.fl_str_mv Speech acoustics
Palatal obturators
Cleft palate
topic Speech acoustics
Palatal obturators
Cleft palate
description The use of prosthetic devices for correction of velopharyngeal insufficiency (VPI) is an alternative treatment for patients with conditions that preclude surgery and for those individuals with a hypofunctional velopharynx (HV) with a poor prognosis for the surgical repair of VPI. Understanding the role and measuring the outcome of prosthetic treatment of velopharyngeal dysfunction requires the use of tools that allow for documenting pre- and post-treatment outcomes. Experimental openings in speech bulbs have been used for simulating VPI in studies documenting changes in aerodynamic, acoustic and kinematics aspects of speech associated with the use of palatal prosthetic devices. The use of nasometry to document changes in speech associated with experimental openings in speech bulbs, however, has not been described in the literature. Objective: This single-subject study investigated nasalance and nasality at the presence of experimental openings drilled through the speech bulb of a patient with HV. Material and Methods: Nasometric recordings of the word "pato" were obtained under 4 velopharyngeal conditions: no-opening (control condition), no speech bulb, speech bulb with a 20 mm² opening, and speech bulb with 30 mm² opening. Five speech-language pathologists performed auditory-perceptual ratings while the subject read an oral passage under all conditions. Results: Kruskal-Wallis test showed significant difference among conditions (p=0.0002), with Scheffé post hoc test indicating difference from the no-opening condition. Conclusion: The changes in nasalance observed after drilling holes of known sizes in a speech bulb suggest that nasometry reflect changes in transfer of sound energy related to different sizes of velopharyngeal opening.
publishDate 2011
dc.date.none.fl_str_mv 2011-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000600012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1678-77572011000600012
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 Faculdade De Odontologia De Bauru - USP
publisher.none.fl_str_mv Faculdade De Odontologia De Bauru - USP
dc.source.none.fl_str_mv Journal of Applied Oral Science v.19 n.6 2011
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
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