File:The Dental cosmos (1914) (14767646692).jpg

Identifier: dentalcosmos5619whit (find matches)
Title: The Dental cosmos
Year: 1914 (1910s)
Authors: White, J. D McQuillen, J. H. (John Hugh), 1826-1879 Ziegler, George Jacob, 1821-1895 White, James William, 1826-1891 Kirk, Edward C. (Edward Cameron), 1856-1933 Anthony, L. Pierce (Lovick Pierce), b. 1877
Subjects: Dentistry Dentistry
Publisher: Philadelphia, S. S. White Dental Manufacturing Co
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: The College of Physicians of Philadelphia and the National Endowment for the Humanities

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(Fig. 4.) The patient had already had some twenty-odd plates of different kinds made by different dentists in the United States, the most successful of which was made by Dr. Gritman of the University of Pennsylvania. This was a rubber plate extending as far back as the soft palate, but in the region of the
102 THE DENTAL COSMOS,
soft palate it was made thick and in the shape of a large collar button, extending into the posterior nares, and around which each division of the soft palate was supposed to contract, and in this way close the opening to the posterior nares. These plates have been made by a num-ber of different dentists and have been described in the dental literature. It patient with the apparatus in his mouth in the act of swallowing, and, as is seen, the clinician's supposition that, in the act of swallowing, the soft part of the palate goes forward and downward, is absolutely correct (Fig. 5). With this particular piece, in the act of swallow-ing, when there is solid food in the mouth, the bolus of the food forces the soft
Text Appearing After Image:
was the clinician's opinion that such a plate must have a soft piece, movable both backward and upward to close the posterior nares, and must respond to the contraction of the pharynx, therefore possess a downward and forward move-ment. After the patient had this appara-tus in his mouth, the clinician had some X-ray pictures taken, to verify his sup-position. The first picture shows the patient with the apparatus in his mouth, at rest (Fig. 4); the second was an instantaneous exposure taken of the soft rubber upward into the posterior nares, closing these off, so that the food does not force itself into the posterior nares. That it is also not necessary that we close that passage entirely in the act of talking is. evidenced by the fact that this patient can talk perfectly well, even if the appliance does not abso-lutely close the posterior nares, that par-ticular portion being made so as to leave a space of about a quarter of an inch beween the posterior wall of the phar-ynx and the end of the soft p

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