A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . e the oro-nasal passage. In the continued efforts toward thisaccomplishment the inhibited growth and dormant activities of the palatal andpharyngeal muscles, through lack of use, will become revivified and no doubt stim-ulated toward assuming their normal inherited properties and proportions. Again in correct speech in pluralized words having final explosives, the explosivetermination of the element is not sounded but is lost in the sibilant, as in cats, etc. THE ASPIRATES The A
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . e the oro-nasal passage. In the continued efforts toward thisaccomplishment the inhibited growth and dormant activities of the palatal andpharyngeal muscles, through lack of use, will become revivified and no doubt stim-ulated toward assuming their normal inherited properties and proportions. Again in correct speech in pluralized words having final explosives, the explosivetermination of the element is not sounded but is lost in the sibilant, as in cats, etc. THE ASPIRATES The Aspirates are the parts of speech uttered with a forcible expulsive orfricative emission of the breath through a constricted opening. They are character-ized by the form of the opening and oral channel through which the breath isforced, and a variety of muscular actions which render them quite distinctive inthe quality and character of their utterance. The sounds of the aspirate oralelements may be divided into Open Aspirates and Explosive Aspirates. 434 PART IX. THE PROSTHETIC CORRECTION OF CLEFT PALATE Fig. Sh—shame L—still, similar to laR—^btir, similar to rii Open Aspirates The Open Aspirate elements are continuoussounds, mostly voiceless breath sounds, with noabrupt or explosive beginning or ending, andblend evenly into the vowel tones to which theyare joined. The English symbols which representthe open aspirate elements are c (soft), f, h,1 (final), r, s, sh, wh, z, and x (final). Whenphonetically symbolized and arranged respectivelyas regards position and mechanism of utterancethey are as follows: In the utterance of wh as in when, what,etc., the breath blast emission is at the lips. In f (final) as in half, stiff, etc., between thelower lip and upper teeth. In c (soft), s and z, as in cell, so, zeal, etc.,at the tip end of the tongue and anterior palatalsurface. In sh as in shame, show, etc., between thebroadened blade of the tongue and anterior hardpalate. In
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