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Updated: May 25, 2026
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Ultrasound Images of the Tongue: A Tutorial for Assessment and Remediation of Speech Sound Errors
Published on: January 3, 2017
Speech defect and orthodontics: a contemporary review
Umal Hiralal Doshi1, Wasundhara A Bhad-Patil
1Department of Orthodontics and Dentofacial Orthopedics, Government Dental College and Hospital, Maharashtra, India. umal_16@rediffmail.com
Orthodontics : the Art and Practice of Dentofacial Enhancement
|February 3, 2012
Summary
Orthodontic therapy can impact speech, but the link between malocclusion and speech defects is not straightforward. Patient adaptation plays a role, though mechanisms are unclear.
Area of Science:
- Speech Science
- Orthodontics
- Phonetics
Background:
- Teeth, lips, tongue, and oropharynx are crucial for consonant articulation.
- Orthodontic therapy altering dental and facial structures may influence speech.
- Understanding the relationship between malocclusion and speech disorders is complex.
Purpose of the Study:
- To examine existing studies on the relationship between malocclusion and speech disorders.
- To discuss the challenges in scientifically investigating this area.
- To clarify the role of orthodontic interventions in speech development.
Main Methods:
- Literature review of relevant scientific studies.
- Analysis of existing research on speech adaptation and malocclusion.
- Discussion of methodological difficulties in the field.
Main Results:
- A correlation exists between certain malocclusions and speech defects.
- The severity of malocclusion does not consistently correlate with speech defect severity.
- Patient speech adaptation to compensate for malocclusion is observed but not fully understood.
Conclusions:
- No direct cause-and-effect relationship established between malocclusion and speech disorders.
- Orthodontic or orthognathic correction does not guarantee speech improvement.
- Further research is needed to understand speech adaptation mechanisms.
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