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Updated: Aug 7, 2026
A Structured Rehabilitation Protocol for Improved Multifunctional Prosthetic Control: A Case Study
Published on: November 6, 2015
Obturator prostheses after cancer surgery: an approach to speech outcome assessment
G K Mahanna1, D R Beukelman, J A Marshall
1Department of Otolaryngology-Head and Neck Surgery, University of Nebraska Medical Center, Omaha, USA.
Purpose:
This article describes a speech assessment protocol for patients using either obturator prostheses or speech aid prostheses for surgically acquired defects due to cancer of the maxilla and/or soft palate.
Methods:
This protocol is structured according to the executive summary of "Disability in America: Toward a National Agenda For Prevention" a report formulated by the Institute of Medicine that describes four levels of disorder: (1) pathology, (2) impairment, (3) functional limitation, and (4) disability. Assessment instruments included (1) the Sentence Intelligibility Test to measure the rate and understandability of speech, (2) a speech physiology system to measure appropriate separation of the nasal/nasopharyngeal and oral compartments, (3) a 13-point interval scale to rate speech nasality, and (4) a scale to rate self-perceptions of communication effectiveness.
Results:
The results from two patients are reported to illustrate the outcome assessment protocol.
