Journal of Technologic Dentistry (대한치과기공학회지)
- Volume 30 Issue 2
- /
- Pages.87-92
- /
- 2008
- /
- 1229-3954(pISSN)
- /
- 2288-5218(eISSN)
Comparative study in marginal accuracy of several all ceramic crowns
전부도재관의 변연 적합도 비교평가
- Kim, Jeong-Mi (Dental Hospital, Wonkwang University) ;
- Jeoung, Su-Ha (Department of Detal Laboratory Technology, Juseong College)
- Published : 2008.12.31
Abstract
Purpose: In this study, we tried to compare marginal accuracy when produce ceramic crown using all ceramic materials and existent metal-ceramic system. Material and methods: All-ceramic systems were E-max (Ivoclar/Vivadent, Lichtenstein), Lava(3M, U.S.A.) and Wol-ceram(Teamziereis, Germany). Metal-ceramic system(PFG) was composed of Au-Pt alloy (Metalor, Switzerlandand) and overlying ceramic(D-sign, Ivoclar/Vivadent, Lichtenstein). We fabricated metal master die with upper diameter of 7.95mm, bottom diameter of 9.00mm, height of 5.00mm, and taper of