Table 2.
Mean (SD) Vickers microhardness, nanohardness, elastic modulus, and the measured and manufacturers' filler percentages by weight (wt%) for all tested materials. Values with the same superscript letters per column represent nonsignificant statistical difference for each individual property (α=0.05).
| Material type |
Material (code) |
Microhardness (Kg/mm2) |
Nanohardness (GPa) |
Elastic Modulus (GPa) |
Manufacturers' Filler (wt%) |
measured filler (wt%) |
|---|---|---|---|---|---|---|
| Resin composite CAD/CAM blocks | Lava™- Ultimate (LU) | 112.6 (0.44)c | 1.25 (0.05)c | 12.14 (0.76)c | 80 | 74.8(0.1) |
| Shofu (SH) | 73.12 (1.04)d,f | 0.775 (031)d | 8.79 (0.35)c,d,e | 61 | 63 (0.02) | |
| Cerasmart (CS) | 80.06 (0.76)d | 0.81(0.006)d | 10.36 (0.17)c,d,e | 70 | 66.1(0.2) | |
| BRILLIANT Crios (BC) |
82.61(0.49)d | 0.85 (0.008)d | 10.98 (0.6)c,e | 71 | 70.1(0.05) | |
| Grandio Blocs (GR) | 121.8(2.1)c | 1.3(0.08)c | 14.8(0.4)c | 86 | 84.6(0.01) | |
|
| ||||||
| Polymer infiltrated ceramic network (PICN) ceramic | Vita Enamic (EN) |
203.1(0.43)b | 3.1 (0.17)b | 34.56 (1.4)b | 86 | 85.1(0.1) |
|
| ||||||
| Pure PEEK | Ceramill PEEK (PE) | 25.7 (0.05)g | 0.317(0.008)e | 2.53 (0.15)d | 0 | .00(0) |
|
| ||||||
| Ceramic filled PEEK | Dentokeep (DK) | 27.74 (0.19)g | 0.34(0.03)e | 3.43 (0.29)d,e | 20 | 27.5(0.06) |
|
| ||||||
| Feldspathic ceramic block | Vitablocs Mark II (VM) | 502.4 (2.28)a | 6.83 (0.379)a | 47.7 (3.47)a | 100 | 100(0) |
|
| ||||||
| Enamel | EM | 313.3 (22.7)h | 4.03(0.35)f | 59.7(13)f | - | - |
|
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| Dentine | DN | 62.3 (3.3)f | 0.76( 0.13)d | 16.5(2.3)c | - | - |