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Related Experiment Video

Updated: Jul 15, 2026

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp

Published on: February 3, 2014

[Vocal fold nodules. Risk factors in teachers. A case control study design].

C A Pérez Fernández¹, J Preciado López

¹Servicio ORL, Hospital San Millán, Logrono, La Rioja. arapi61@hotmail.com

Acta Otorrinolaringologica Espanola

|June 27, 2003

Summary

Younger teachers with less experience are more prone to vocal nodules. Classroom dryness, loudness, echo, and personal factors like reflux increase risk, impacting voice quality.

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Last Updated: Jul 15, 2026

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp

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Published on: February 3, 2014

Construction and Characterization of a Novel Vocal Fold Bioreactor

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Preparation of the Rat Vocal Fold for Neuromuscular Analyses

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Published on: May 15, 2020

Area of Science:

Otolaryngology
Speech-Language Pathology
Occupational Health

Context:

Vocal nodules are common among professional voice users, particularly teachers.
Understanding risk factors is crucial for prevention and management in this occupational group.

Purpose:

To identify and analyze the risk factors associated with the development of vocal nodules in teachers.
To correlate professional, personal, and classroom environmental factors with vocal nodule formation.

Summary:

A study of 242 teachers (120 with vocal nodules) revealed younger teachers with less experience are at higher risk.
Classroom factors (dryness, loudness, echo) and personal history (vocal pathology, surgeries, gastroesophageal reflux) are significant risk factors.
Impaired vocal intensity, frequency range, and phonatory flow efficiency were observed in teachers with vocal nodules.

Impact:

Highlights the need for targeted voice care interventions for teachers, especially early-career educators.
Informs the development of healthier classroom environments to mitigate vocal strain.
Provides data for occupational health strategies aimed at preserving vocal health in educators.