대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제35권2호
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- Pages.357-364
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- 1997
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
재 사용된 IPS-empress ingot의 pressing accuracy에 관한 연구
A STUDY ON THE PRESSING ACCURACY OF THE REUSED IPS-EMPERESS INGOT
- Song, Byung-Kwen (Dept. of Prosthodontics, College of Dentistry, Wonkwang University) ;
- Park, Hyun-Bae (Dept. of Prosthodontics, College of Dentistry, Wonkwang University) ;
- Oh, Sang-Chun (Dept. of Prosthodontics, College of Dentistry, Wonkwang University) ;
- Jin, Tae-Ho (Dept. of Prosthodontics, College of Dentistry, Wonkwang University)
- 발행 : 1997.07.01
초록
IPS-empress system is one of widely used all ceramic system. The purpose of this study was to determine the pressing accuracy of reused IPS%Empress ingot. 10 specimens were made using new ingot first, and using the rests of the specimen the another group of specimens were made next. finally, the third group of specimens were made with same procedure mentioned above. The results obtained in this study were as follows ; 1. The pressing accuracy of the first group of specimen was 96.1%, that of the second group was 95.4%, and that of the third group was 95.4%. There was no statistical significance among them, that is, the reuse of the IPS-Empress ingot did not influence on the pressing accuracy. 2. the common site of the defect in pressed ingot was central area at the margin opposite of sprue hole.
키워드