| 제일대구치 결손시와 가공의치 장착후의 저작능율측정에 관한 실험적 연구 |
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이건수1, 김정수2 |
1연세대학교 치과대학 보철학교실
2연세대학교 치과대학 보철학교실 |
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Kun-Soo Lee1, Jung-Soo Kim2 |
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| Abstract |
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The author had studied the masticatory effience on three different types; on missing of the first molar, on replacing the missed first molar with crown & bridge and on natural dentition. This study was made from the parched soybeans as testfood by means of mesh technique. As a result of this study on 25 of natural dentitions, 20 of crown & bridges and 25 of missing of the first molars, the following were come out.
1. Masticatory efficiency of natural dentitions was 75.8%, that of crown & bridges was 66.4%, and that of missing of the first molars was 43.7%.
2. Difference of masticatory efficiency of crown & bridges to natural dentitions was 9.4%, that of natural dentitions to missing teeth was 32.1%, and that of crown & bridges to missing teeth was 22.7%. |
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