Premium
Speech intelligibility in patients with complete dentures according to the material used
Author(s) -
Bonfil J. J.
Publication year - 1998
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1046/j.1365-2842.1998.00259.x
Subject(s) - intelligibility (philosophy) , dentures , prosthesis , audiology , psychology , dentistry , orthodontics , medicine , philosophy , epistemology , neuroscience
The principal purpose of this study was to investigate the speech of two edentulous subjects fitted with a complete maxillary prosthesis made of three different palatal materials: aluminium, resin, stellite. The study was performed using two speakers fitted with a prosthesis (a man and a woman). They took part in the acoustic recording of logatoms read by themselves while wearing various prostheses. These recordings were tested from the auditory point of view by a series of six listeners (four men and two women) in an anechoic room. After 144 different tests, a speech reception threshold (SRT) was defined for each speaker and each different prosthesis. This SRT shows a level of speech intelligibility defined so that the lower the SRT, the more intelligible for the listener. The results show that: (i) both the material and the listener influence SRT: ( P < 0·05); (ii) an interaction between the material factor and the speaker factor appears. ( P < 0·05); (iii) The hierarchy factors influencing SRT are most important in the order: Listener → material → speaker; and (d) The group fitted with a metal prosthesis (aluminium, stellite) was more intelligible regarding the way they were perceived by others.