Changes over time in unvoiced plosives after placement of transpalatal arch
2002 Volume 65 Issue 1 Pages 31-40
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2002 Volume 65 Issue 1 Pages 31-40
A transpalatal arch is often used in orthodontic treatment for vertical control of the maxillary molars and expansion of maxillary inter-molar width. Patients with a transpalatal arch usually have difficulties with speech. To evaluate articulation changes over time with the transpalatal arch, we performed speech tests, time element analysis and formant frequency analysis of the unvoiced plosives /ka/,/ki/,/ku/,/ke/,/ko/,/ta/,/te/ and /to/.
We found that the cause of unclear pronunciation was frequently incorrect articulation of consonants and the subsequent vowels. Differences in the place of articulation affected aspects of self-compensation. Shika Igaku (J Osaka Odontol Soc) 2002 Mar; 65(1): 31-40.
