Shenzhen Upcera Dental Technology Co., Ltd.
Shenzhen Upcera Dental Technology Co., Ltd.
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FDA Zirconium Oxide Ceramic Super Translucent Multi - Layer Zirconia In Dentistry
Specifications
| Wieland System | Cerac in lab (Sirona)System |
| D98*10 | 14*13*13 |
| D98*12 | 20*14*15 |
| D98*14 | 20*19*15 |
| D98*16 | 40*14*15 |
| D98*18 | 40*19*15 |
| D98*20 | 55*19*15.5 |
| D98*22 | 65*25*22 |
| D98*25 | 65*40*22 |
|
| 85*40*22 |
FAQ
Q: Is the fit of a zirconia coping important since the zirconia ceramic is so strong?
A: The thicker the cement the weaker the all-ceramic restoration. Cements are not as rigid as zirconia ceramic, so a thicker cement layer will cause more flexural deformation of a ceramic core, increasing the potential for fracture.
Q: Is it ok to grind on a zirconia coping without water spray?
A: Water spray is necessary when grinding on a zirconia ceramic coping. The white light or hot spot you see between a diamond and a zirconia ceramic has been measured at 1500 ºC. If the temperature of zirconia ceramic rises above 1000 ºC, a phase change can occur that will induce cracking and surface defects, lowering the strength of the coping.
Q: Is preparation design of a zirconia coping important since the zirconia ceramic is so strong?
A: Preparation design of the zirconia coping is very important. The thickness of unsupported porcelain should not exceed 2 mm. The zirconia coping should be as thick as needed to avoid unsupported porcelain.
