Table 1. Characteristics and indications of Chairside CAD/CAM ceramics.
Feldspathic and leucite-reinforced ceramics | Lithium disilicate and zirconium oxide and lithium silicate | Zirconia | |
---|---|---|---|
Microstructure | Glassy matrix + crystalline loads (Feldspath, Leucite) | Glassy matrix + Lithium disilicate Zirconium oxide and lithium silicate | Polycristalline |
Flexural strength | Low: 160 MPa before bonding | High: 370 à 420 MPa before bonding | Very high: 800 à 1200 MPa |
Optic properties | Excellent | Good | Medium/Weak |
Bonding aptitude | Excellent | Excellent | Medium/Weak |
Indications | Veneer Chips Inlay Onlay Overlay Crown Endocrown V-Prep Endo V-Prep |
Inlay Onlay Overlay Veneer Crown Endocrown V-Prep Endo V-Prep Bridge of small extent in the anterior Abutment |
Crown Bridge |
Advantage | Clinical experience Esthetic Wide range (shades) Translucidity |
Clinical experience (e.max) Esthetic Mechanical strength Wide range (shades, translucidity) |
Mechanical strength |
Disadvantage | Relative fragility Translucidity |
Less light than conventional feldspathic ceramic |
Esthetic Translucidity Implementation |
Available blocks | Mark II (Vita) Triluxe/ Triluxe Forte (Vita) Real Life (Vita) Cerec bloc/ Cerec PC (Sirona) Empress CAD (Ivoclar-Vivadent) |
e.max CAD (Ivoclar-Vivadent) Suprinity/ Suprinity FC (Vita) Celtra (Dentsply) |
Bruxzir (Bruxzir) YZ HT (Vita) |