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Using Sentence Categories for Nasometric Assessment of Resonance Disorders.

Felipe Inostroza-Allende1,2,3, Josué Pino-Castillo1, Camilo Quezada-Gaponov1

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Summary

This study found that reading specific sentences can detect differences in nasalance for simulated resonance disorders in Chilean Spanish speakers. Nasalance measurements reliably distinguish between balanced resonance and hypernasality, hyponasality, or mixed resonance.

Keywords:
Cleft palatenasometryresonance disordersspeech acousticsvelopharyngeal dysfunction

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Area of Science:

  • Speech-Language Pathology
  • Acoustic Analysis
  • Resonance Disorders

Background:

  • Nasalance measurement is crucial for assessing resonance disorders.
  • Detecting velopharyngeal dysfunction (VPD) requires reliable methods.
  • Spanish language studies on nasalance are less common.

Purpose of the Study:

  • To evaluate if specific sentences can differentiate nasalance in Chilean Spanish speakers with simulated resonance disorders.
  • To compare nasalance scores across balanced, hypernasal, hyponasal, and mixed resonance conditions.
  • To assess the utility of sentence reading for identifying resonance deviations.

Main Methods:

  • 30 healthy Chilean Spanish speakers participated.
  • Participants simulated hypernasality, hyponasality, and mixed resonance.
  • Nasalance was measured using a nasometer during sentence reading.
  • Statistical analysis included repeated-measures ANOVA and Tukey post hoc tests.

Main Results:

  • Significant differences in nasalance were found between balanced resonance and all simulated resonance conditions (hypernasality, hyponasality, mixed).
  • Nasalance values in simulated conditions were distinct.
  • The findings support the use of these sentences for resonance assessment.

Conclusions:

  • Sentence reading effectively differentiates simulated resonance disorders in Chilean Spanish speakers based on nasalance.
  • The study validates the use of specific sentences for nasometric assessment.
  • Further research with actual patients and blind methodologies is recommended.