A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . A complicated two-section impression. no doubt is due to the yielding nasal tissues. Fig. 11 shows different views of atwo-section impression of a symmetrical cleft, taken as described. Fig. 12 shows a two-section impression where the thin ear-like extension onthe right side of the nasal section shows how the plaster had been forced into the 444 PART IX. THE PROSTHETIC CORRECTION OF CLEFT PALATE Fig. A thiee-section impression. middle meatus. The impression illustrates the
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . A complicated two-section impression. no doubt is due to the yielding nasal tissues. Fig. 11 shows different views of atwo-section impression of a symmetrical cleft, taken as described. Fig. 12 shows a two-section impression where the thin ear-like extension onthe right side of the nasal section shows how the plaster had been forced into the 444 PART IX. THE PROSTHETIC CORRECTION OF CLEFT PALATE Fig. A thiee-section impression. middle meatus. The impression illustrates the possibility of removing an extensive and apparently impossible nasal section in one piece. The impression was removed without a break, notwithstanding the fact that one of the extensions was only a little thicker than a blotter. This nicely illustrates the yielding and releasing possibilities of the nasal organs, on the same principle that an impression of an ear can be easily removed, which would be impossible if its framework was composed of unyielding bone. Three-Section Impressions If the lateral borders at the posterior en-trance to the nares from the naso-pharynxare contracted so that the width of the nasalchamber is wider than its posterior entrance,or if there are deep lateral sulci or attachmentsof any character that would prevent the directbackward movement of the one piece nasalsection, the impression of the nares shouldbe taken in two sections, making a three-section impression. Fig. 13 is made froma
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Keywords: ., bookcentury1900, bookdecade1920, bookidpracticaltre, bookyear1921
