Across
- 3. _______________________consists of a lithium-disilicate pressed glass ceramic, but its physical properties and translucency are improved than IPS Empress 2 through a different firing process.
- 5. IPSEmpress (Ivoclar Viva- dent), is a ________________________ ceramic
- 7. IPS Empress 2 (Ivoclar Vivadent, Schaan, Liechtenstein) is a ___________________________ ceramic .
- 8. based ceramic ______________________________is polycrystalline material that contain no glass, all the atoms are packed into regular crystalline arrays through which it is much more difficult to drive a crack
- 9. _________________was a glass-ceramic material composed of 70% tetrasilicic flu- ormica crystals precipitated in 30% glass matrix.
Down
- 1. ____________________ceramics are much tougher and stronger than glass-based ceramics
- 2. In Ceram- Zirconia composed of 67% aluminum oxide and 33% partially stabilized_____________________________
- 4. feldspars are mainly comprised of______________(60% - 64%)
- 6. procera All Ceram is fabricated from copings that contain 99.9% high purity_____________________________