Table 1.
Technical specifications and manufacturers of the materials
| Material | Chemical composition (%) | Coefficient of Thermal Expansion (10− 6 K− 1) | Flexural strength (MPa) | Manufacturer |
|---|---|---|---|---|
| inCoris ZI; zirconia | ZrO2+HfO2+Y2O3 (≥ 99.0), Y2O3 (> 4.5 - ≤ 6.0), HfO2 (≤ 5), Al2O3 (≤ 0.5), Fe2O3 (≤ 0.3) | 11 | > 900 | Sirona Dental Systems |
|
IPS e.max CAD; Lithium disilicate glass ceramic |
SiO2 (57–80), Li2O (11–19), K2O (0–13), P2O5 (0–11), ZrO2 (0–8), ZnO (0–8), Al2O3 (0–5), MgO (0–5), Colouring oxides (0–8) | 10.2 | 360 | Ivoclar Vivadent |
| Vita Mark II; feldspathic ceramic | SiO2 (56–64), Al2O3 (20–23), Na2O (6–9), K2O (6–8), CaO (0.3–0.6), TiO2 (0-0.1) | 9.4 | 136 | Vita Zahnfabrik |
| IPS e.max CAD Crystall./Connect; fusion glass ceramic |
Water, butandiol and zinc chloride (11–30), Powder (70–90); SiO2 (50–65), Al2O3 (8–22), Na2O (6–11), K2O (4–8), ZnO (1–3), other oxides (5-17.5), pigments (0.1-3) |
9.5 | 160 | Ivoclar Vivadent |