대한치과기공학회지 (Journal of Technologic Dentistry)
- 제27권1호
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- Pages.89-95
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- 2005
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- 1229-3954(pISSN)
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- 2288-5218(eISSN)
금속의 두께가 도재의 파절강도에 미치는 영향
A study on the difference of Ceramic fracture strength according to the metal depth
- Shin, Mu-Hak (Dept. of Dental Lab. Technology, Wonkwang Health Science College) ;
- Choi, Un-Jae (Dept. of Dental Lab. Technology, Wonkwang Health Science College) ;
- Kim, Yoong-Won (Bo Hwa Dental Lab.)
- 발행 : 2005.07.01
초록
In the manufacture of ceramo-metal crown, difference of fracture strength according to the metal depth has been known to be an important influence on enough intensity and internal stress to endure an occlusion-pressure as well as aesthetics of rehabilitating similar colour such as natural teeth. Depth of ceramic material could be determined by that of metal in three groups: first case of thin depth, second case of thick depth, and third case of constant depth. For the enhancement of the fracture strength between metal and ceramic materials and aesthetic satisfaction, a study on the bonding force, fracture strength, and aesthetics have been required more. In this study, therefore metal coping were made in three groups of A, B and C by using both ceramic powder of Norithe and metal of Columbium, which have been used primarily in the market. A group was made in