A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . p, is now warmedat one end over a small jet of a Bunsen Burner, with sufficient heat to enable itsfirm cohesion to the trial-model at the point n, Figs. 23 and 25, where the loopemerges from the tube. Then with slight warmings, carry it around the loop im-bedding it in its substance to the other end; finally, cut off the surplus and attachthe end as before. This is shaped by the fingers, so as to leave the outer borderrounded and the inner (o) pinched to a V-edge to evenly join
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . p, is now warmedat one end over a small jet of a Bunsen Burner, with sufficient heat to enable itsfirm cohesion to the trial-model at the point n, Figs. 23 and 25, where the loopemerges from the tube. Then with slight warmings, carry it around the loop im-bedding it in its substance to the other end; finally, cut off the surplus and attachthe end as before. This is shaped by the fingers, so as to leave the outer borderrounded and the inner (o) pinched to a V-edge to evenly join the line of the finalthin central portion of the veil. A proper degree of judgment based upon the position and action of the musclesand their requirements in speaking, will enable this prehminary shaping of the loopand border of the veil to its relations with the pharyngeal walls. When in place,it can easily be seen where the contracted muscles press too hard upon it, eventhough the patient may not complain of irritation in swallowing; these places 454 PART IX. THE PROSTHETIC CORRECTION OF CLEFT PALATE Fig. shoiild be trimmed, or warmed and pressed back, and their positions confirmed byrepeated trials. Great care must always be exercised in the repeated necessary introduction andremoval of the model, to prevent changing its form. This danger debars soften-ing the border of the model sufficiently to obtain an exact impression of the muscles in their contracted state along the desired zone,though a jet of warm air or water upon limitedareas followed with repeated acts of the patientsswallowing, might accomplish this. As the speaking efficiency of the obturator de-pends so largely upon the form and relative posi-tion of the veil, it should be regarded as the mostscientific part of the whole operation, and propor-tionate care and skill given to forming the is quite necessary to obtain a close coapta-tion of the anterior lateral borders of the veil(r, Fig. 25), in rela
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Keywords: ., bookcentury1900, bookdecade1920, bookidpracticaltre, bookyear1921
