대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제35권1호
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- Pages.144-164
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- 1997
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
도재소부전장금관용 Opaque 분말과 도재전장관용 core 분말의 물리화학적 성질 및 금속과의 결합력에 대한 비교연구
A COMPARATIVE STUDY OF THE PHYSICOCHEMICAL PROPER TIES AND BOND STRENGTH TO METAL BETWEEN THE REGULAR OPAQUE POWDER AND CORE POWDER
- Lim, Jang-Seop (Deopartment of Prosthodontics, College of Dentistry, Pusan National University) ;
- Chung, Chang-Mo (Deopartment of Prosthodontics, College of Dentistry, Pusan National University) ;
- Jeon, Young-Chan (Deopartment of Prosthodontics, College of Dentistry, Pusan National University)
- 발행 : 1997.01.01
초록
The purpose of this study were to investigate the chemical composition, mean particle size, linear thermal expansion coefficient and metal-bonding strength of the regular opaque powder and core powder. In this study, 4 types of ceramic powders, namely Duceram Jacket Opaque powder, Duceram Opaque powder, Vita Hi-Ceram powder, Vita VMK Paint On-88 powder were used. Chemical composition was evaluated by EDS(Energy Dispersive X-ray Spectrophotometer, Oxford QX-2000, England), particle size was measured by MALVERN Instruments(MALVERN Instruments SB. OC., U.S.A.. ad linear thermal expansion coefficient was measured by dilatometer(Motoyama, Japan). Bond strength was measured by the Universal tsting machine(Istron Co., Ltd., U.S.A.). The Results were as follows : 1. Through recognition of the relative difference in chemical composition between the core powder and the regular opaque powder, the difference in the proportion of
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