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Differential effects of speech prostheses in glossectomized patients
1Department of Otolaryngology-Head and Neck Surgery, University of California, Davis, Sacramento.
The Journal of Prosthetic Dentistry
|December 1, 1990
Summary
Speech prostheses improved outcomes for patients after glossal resection, enhancing intelligibility and reducing speech errors. Improvement varied by individual and resection type, informing rehabilitation strategies.
Area of Science:
- Speech-Language Pathology
- Prosthodontics
- Acoustic Phonetics
Background:
- Glottal resection significantly impacts speech production and intelligibility.
- Custom-designed prostheses offer a potential solution for speech rehabilitation.
- Quantifying prosthetic effectiveness requires objective and subjective measures.
Purpose of the Study:
- To evaluate the effectiveness of custom speech prostheses in patients with glossal resection.
- To assess the impact of prostheses on speech intelligibility and acoustic parameters.
- To determine how improvements vary across different resection categories.
Main Methods:
- Fitted five patients with glossal resection with custom speech prostheses.
- Recorded speech samples with and without prostheses.
- Analyzed recordings for listener judgments (intelligibility, severity) and acoustic measures (F2 range).
Main Results:
- All patients demonstrated measurable improvements in speech measures with prostheses.
- Listener judgments of intelligibility and severity showed positive changes.
- Acoustic analysis indicated alterations in vowel F2 range.
- The degree of improvement differed among participants and resection types.
Conclusions:
- Custom speech prostheses can enhance speech production and intelligibility in patients post-glottal resection.
- Individual patient factors and surgical extent influence prosthetic efficacy.
- Findings support the role of prosthetic devices in speech rehabilitation for this population.