Speech intelligibility enhancement through maxillary dental rehabilitation with telescopic prostheses and complete dentures

TY - JOUR

T1 - Speech intelligibility enhancement through maxillary dental rehabilitation with telescopic prostheses and complete dentures

T2 - a prospective study using automatic, computer-based speech analysis

AU - Knipfer, Christian

AU - Bocklet, Tobias

AU - Noeth, Elmar

AU - Schuster, Maria

AU - Sokol, Biljana

AU - Eitner, Stephan

AU - Nkenke, Emeka

AU - Stelzle, Florian

PY - 2012/1/20

Y1 - 2012/1/20

N2 - PURPOSE: A completely edentulous or partially edentulous maxilla involving missing anterior teeth may impact speech production and lead to reduced speech intelligibility. The aim of this study was to prospectively evaluate the effect of a dental prosthetic rehabilitation on speech intelligibility in patients with a toothless or interrupted maxillary arch by means of an automatic, standardized speech recognition system.MATERIALS AND METHODS: The speech intelligibility of 45 patients with complete tooth loss or a loss including missing anterior teeth in the maxilla was evaluated by means of a polyphone-based automatic speech recognition system that assessed the percentage of correctly recognized words (word accuracy). To replace inadequate maxillary removable dentures, 20 patients from the overall sample had been rehabilitated with complete dentures and 25 patients with telescopic prostheses. Speech recordings were made in four recording sessions (with and without existing prostheses and then at 1 week and 6 months after placement of newly fabricated prostheses).RESULTS: Significantly higher speech intelligibility was observed in both patient groups compared to the original results without the dentures inserted. After 6 months of adaptation, both groups had reached a level of speech quality that was comparable to the healthy control group. However, patients receiving new telescopic prostheses showed significantly higher levels of speech intelligibility compared to those receiving new complete dentures. Within 6 months, speech intelligibility did not significantly improve from the level found 1 week after insertion of new prostheses for both groups.CONCLUSION: Patients benefit from the fabrication of new dentures in terms of speech intelligibility, regardless of the type of prosthesis. However, telescopic crown prostheses yield significantly better speech quality compared to complete dentures.

AB - PURPOSE: A completely edentulous or partially edentulous maxilla involving missing anterior teeth may impact speech production and lead to reduced speech intelligibility. The aim of this study was to prospectively evaluate the effect of a dental prosthetic rehabilitation on speech intelligibility in patients with a toothless or interrupted maxillary arch by means of an automatic, standardized speech recognition system.MATERIALS AND METHODS: The speech intelligibility of 45 patients with complete tooth loss or a loss including missing anterior teeth in the maxilla was evaluated by means of a polyphone-based automatic speech recognition system that assessed the percentage of correctly recognized words (word accuracy). To replace inadequate maxillary removable dentures, 20 patients from the overall sample had been rehabilitated with complete dentures and 25 patients with telescopic prostheses. Speech recordings were made in four recording sessions (with and without existing prostheses and then at 1 week and 6 months after placement of newly fabricated prostheses).RESULTS: Significantly higher speech intelligibility was observed in both patient groups compared to the original results without the dentures inserted. After 6 months of adaptation, both groups had reached a level of speech quality that was comparable to the healthy control group. However, patients receiving new telescopic prostheses showed significantly higher levels of speech intelligibility compared to those receiving new complete dentures. Within 6 months, speech intelligibility did not significantly improve from the level found 1 week after insertion of new prostheses for both groups.CONCLUSION: Patients benefit from the fabrication of new dentures in terms of speech intelligibility, regardless of the type of prosthesis. However, telescopic crown prostheses yield significantly better speech quality compared to complete dentures.

KW - Adaptation, Physiological

KW - Adult

KW - Aged

KW - Aged, 80 and over

KW - Chromium Alloys

KW - Dental Materials

KW - Denture Design

KW - Denture Precision Attachment

KW - Denture Retention

KW - Denture, Complete, Upper

KW - Denture, Overlay

KW - Denture, Partial

KW - Female

KW - Follow-Up Studies

KW - Humans

KW - Jaw, Edentulous

KW - Jaw, Edentulous, Partially

KW - Male

KW - Maxilla

KW - Middle Aged

KW - Polymethyl Methacrylate

KW - Prospective Studies

KW - Speech Intelligibility

KW - Speech Production Measurement

KW - Speech Recognition Software

KW - Treatment Outcome

KW - Comparative Study

KW - Journal Article

KW - Research Support, Non-U.S. Gov't

M3 - SCORING: Journal article

C2 - 22259792

VL - 25

SP - 24

EP - 32

JO - INT J PROSTHODONT

JF - INT J PROSTHODONT

SN - 0893-2174

IS - 1

ER -