The present study was made to analyze the phonological adaptative phenomenon following the setting of plate denture.
Five subjects were used, with 6 words, including monosyllables, in sound cord connection of voiceless fricative /s/or/∫/as test sound and vowels, being adopted as test vocabulary. Taking mean and variance of the speech duration of consonant /s/·/∫/as well as coefficient of correlation of the duration between consonant and vowel within the monosyllable, as parameters, observational examination was made of the diurnal variation in 7 consecutive days.
The results indicated the appropriateness of an analysis by means of the vocabulary including/∫a/following the syllabic nasal or leptovowel and/se/following the syllabic nasal, for overall grasp of the adaptative phenomenon.
