relation between speaking space of the /s/ sound and freeway space in dentate and edentate subjects correlação entre espaço de pronúncia do som /s/ e espaço funcional livre em indivíduos dentados e edentados

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ID: 229257
2004
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Abstract
The purpose of this study is to assess the relation between the speaking space of the /s/ sound and the freeway space in two subject groups. One group had natural dentition (Group I, n = 61) and the other comprised complete denture wearers (Group II, n = 33). The analysis was done by means of a jaw-tracking device (K6-I Diagnostic System, Myotronics Research Inc., Seattle, WA, USA). Freeway space was determined by asking the subjects to occlude from the postural rest position. Speaking space of /s/ was measured during the pronunciation of the word "seis" and comprised the mean distance from the /s/ speaking position to maximal intercuspation. A weak correlation was found between the speaking space of /s/ and the freeway space in Group I (r = 0.41, p < 0.01), but in Group II, the correlation was stronger (r = 0.75, p < 0.01). The speaking space of /s/ and freeway space were different in Group I, but statistically similar in Group II (paired t-test, a = 0.05). It can be suggested that anatomic changes following prosthetic procedures caused a functional adaptation which resulted in more similar values for the speaking space of /s/ and the freeway space.
O objetivo deste estudo foi investigar a associação entre o espaço de pronúncia do som /s/ e o espaço funcional livre em dois grupos de indivíduos. A amostra foi classificada em dentados (Grupo I, n = 61) e portadores de próteses totais (Grupo II, n = 33). A análise foi realizada empregando um instrumento cinesiográfico (K6-I Diagnostic System, Myotronics Research Inc., Seattle, WA, EUA), capaz de fornecer registros dos movimentos mandibulares. O espaço funcional livre foi determinado solicitando-se ao indivíduo que ocluísse a partir da posição de repouso postural. O espaço de pronúncia do /s/ foi aferido durante a pronúncia da palavra "seis", registrado como a posição mandibular média para o som /s/ em relação à máxima intercuspidação. Houve uma fraca correlação entre o espaço funcional livre e o espaço de pronúncia do /s/ para o Grupo I (r = 0,41, p < 0,01), mas uma correlação relativamente forte para o Grupo II (r = 0,75, p < 0,01). O espaço funcional livre e o espaço de pronúncia do /s/ foram diferentes no Grupo I, mas estatisticamente semelhantes no Grupo II (teste t pareado, a = 0,05). Dessa forma, pode-se deduzir que mudanças anatômicas após o procedimento protético provocaram uma adaptação funcional, sendo que esse processo adaptativo aproximou as duas variáveis - espaço de pronúncia do /s/ e espaço funcional livre.
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souza2004brazilianrelation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Raphael Freitas de Souza, Marco Antonio Compagnoni
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Journal journal of information and computational science
Year 2004
DOI
10.1590/S1806-83242004000400011
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242004000400011
Keywords
denture dental occlusion phonetics

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