Phonetic parameters analysis of articulated consonant with different denture base
10.3760/cma.j.issn.1002-0098.2010.03.007
- VernacularTitle:全口义齿不同基托语音功能的语音学参数分析
- Author:
Lei XIE
1
;
Xi YAO
;
Qian HOU
;
Zhi-Yue LU
Author Information
1. 卫生部北京医院
- Keywords:
Denture,complete;
Phonetics;
Denture bases
- From:
Chinese Journal of Stomatology
2010;45(3):155-159
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the phonetic parameters changes of titanium denture base materials to that of conventionally processed poly methyl methacrylate(PMMA)resin.Methods Forty-two edentulous patients were included in this study.Each patient received two sets of dentures.One of the upper denture was restored with titanium denture base,the other was restored witll conventional PMMA denture base.Consonant /x,sh,r,zh,ch,j,q/associated with place of articulation and manner of articulation were chosen and all of the processed acoustic specimens were stored at computerized speech lab(CSL).Model 4150 (KAY) for the first concentrated frequency area (CFA-1),voice onset time (VOT) and spectrogram were analyzed.Results The consonant articulation effect of denture base showed significant difference between the two type of dentures in the CSL.The consonant parameters(/x,sh,r,zh,ch,j,q/)CFA-1 of group A [(3595±102),(3089±104),(1876±116),(4078±116),(3604±119),(5432±118),(4934±121)Hz]was different from the one of group B[(3644±101),(3280±88),(1978±113),(4214±193),(3817±49),(5478±158),(5020±183)Hz](P<0.05).The consonant parameters VOT of/zh,ch,j/in group A[(54.67±1.13),(143.80±2.24),(62.53±0.75)ms]was different from those of group B[(52.88±0.34),(137.55±2.50),(62.00±1.54) ms](P<0.05).The consonant parameters VOT of/g,k/in group A [(26.94±0.33),(114.53±2.15)ms] was different from those of group B [(28.59 4-0.65),(124.40±3.74) ms](P<0.05).A redundant spike as it was located prior to the inherent spike could be observed in the/g,k/spectrogram of the PMMA denture base group.Conclusions Titanium denture base is recommended to provide a satisfying form of articulate position with thinner front Palate thickness of the denture base.CFA-1 and VOT based CSL are effective acoustic parameters for articulation testing after denture delivery.
