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口蓋床의 厚徑에 因한 口蓋圖의 實驗的 硏究

An Experimental Study of Palatogram in relatin to Palatal Plate Thickness

최신의학 1970년 13권 12호 p.97 ~ 108
김현구,
소속 상세정보
김현구 (  ) - 서울대학교 치과대학 보철학교실

Abstract


Using Chin´s classification of palatograms, the author has made a comparision of 8 different Korean mono-syllabic sounds that are paired according to phonetic types. They are: type C/t-}, r}/, type H /z}, 1}/, type U /71, a}/ and type V /4}, o}/ which occur most frequently. Five different palatal plates of 1.0 mm, 1.5 mm, 2.0 mm, 2.5 mm and 3.0 non in thickness were applied to 5 male and 5 female subjects.
Comparative observations were made while the subjects were asked to pronounce those sounds. The results from this study permit the following conclusions:
1) Types C, H and V have a tendency to increase the plate contact area in proportion to the thickness of the experimental palatal plate, whereas type U shows no differences.
2) There are little variations of total surface area that can be related to the palatal plate thickness. However, an exception is observed in typ. H, of which syllable /4}/ shows a notable increase.
3) With the palatal plate thickness of 2.0 nun and 2. 5 mm variations of the subject contact area are generally irregular.
4) Since little variations exist with 1. 0 mm and 1. 5 mm of plate thickness, these values are considered ideal for construction of the denture plate.

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