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Related Experiment Videos

Study of mandibular movements during speech.

M Peraire1, J Salsench, J Torrent

  • 1University of Barcelona School of Dentistry.

Cranio : the Journal of Craniomandibular Practice
|October 1, 1990
PubMed
Summary

Mandibular movements during Spanish speech show distinct patterns, with frequent incisal occlusal contacts. Understanding these speech-related jaw movements is crucial for diagnosing unexplained occlusal trauma.

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Area of Science:

  • Dentistry
  • Biomechanics
  • Speech Science

Background:

  • Occlusal trauma can have unknown etiologies.
  • Understanding jaw movements during speech is important for diagnosis.

Purpose of the Study:

  • To characterize mandibular movements during Spanish speech.
  • To identify specific kinematic variables during speech production.

Main Methods:

  • Recorded mandibular movements in 71 adults (24-35 years) using a kinesiograph.
  • Analyzed nine kinematic variables during text reading in Spanish.

Main Results:

  • Mandibular movements during speech exhibit defined characteristics.
  • A high percentage of occlusal contacts at the incisal level were observed during speech.

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Conclusions:

  • Speech-induced mandibular movements have unique features.
  • High incisal occlusal contact frequency during speech is a key finding.
  • This finding is relevant for diagnosing occlusal trauma of uncertain origin.