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Related Experiment Videos

Tooth position and speech--is there a relationship?

N C Johnson1, J R Sandy

  • 1Bristol Dental School, University of Bristol, UK.

The Angle Orthodontist
|August 24, 1999
PubMed
Summary

The link between tooth position and speech is debated. While some dental issues relate to speech disorders, altering tooth position may not fix articulation problems.

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Area of Science:

  • Dentistry
  • Speech Science
  • Linguistics

Background:

  • Teeth are widely acknowledged to be crucial for speech production.
  • The precise relationship between dental alignment and speech articulation remains a subject of scientific controversy.
  • Patient adaptation to abnormal tooth positions is observed, but the underlying mechanisms are not fully understood.

Purpose of the Study:

  • To review existing literature on the relationship between tooth position and speech production.
  • To discuss the challenges inherent in scientifically investigating this complex area.
  • To evaluate the evidence for dental interventions improving speech disorders.

Main Methods:

  • Systematic literature review of studies examining dental irregularities and speech.
  • Analysis of research focusing on speech adaptation mechanisms.
  • Evaluation of the correlation between malocclusion severity and speech impairment.

Main Results:

  • Certain dental irregularities are associated with speech disorders.
  • The severity of malocclusion does not consistently correlate with the presence or degree of speech disorders.
  • Evidence supporting the improvement of articulation disorders through dental position alteration is inconclusive.

Conclusions:

  • While a connection exists between some dental irregularities and speech issues, it is not definitively proven that correcting tooth position resolves articulation disorders.
  • Further research is needed to elucidate the mechanisms of speech adaptation.
  • The clinical impact of orthodontic treatment on speech articulation requires more robust evidence.

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