Table 2.
Flexural Strength, Flexural Modulus, Work of Fracture, and Degree of C=C Conversion of All Hybrid Resin Composites Tested.
| Composite | σf, MPa | Ef, GPa | WoF, kJ.m1/2 | DC, % |
|---|---|---|---|---|
| Al | 57.9 (9.1)b | 7.3 (1.0) | 1.4 (0.4)b | 62.0 (1.6) |
| AlSi | 63.9 (5.7)a | 7.0 (1.2) | 1.9 (0.5)a | 67.4 (1.1) |
| Ti | 53.1 (7.1)b | 6.7 (1.1) | 1.4 (0.3)b | 54.0 (1.1) |
| TiSi | 63.4 (6.9)a | 6.5 (1.7) | 1.9 (0.5)a | 54.9 (1.1) |
| Zr | 52.0 (8.1)b | 5.2 (1.6) | 1.7 (0.7)b | 62.3 (1.9) |
| ZrSi | 70.3 (6.4)a | 6.1 (2.0) | 2.4 (0.4)a | 62.4 (1.9) |
Values presented as means (SD). σf, Ef, and WoF were measured after 10,000 thermal cycles. Distinct letters indicate statistical differences between groups with and without silica coating within the same type of particle (5%).
Mechanical testing: σf, flexural strength; DC, degree of C=C conversion; Ef, flexural modulus; WoF, work of fracture. Composites: Al, alumina; AlSi, silica-coated Al; Ti, titania; TiSi, silica-coated Ti; Zr, zirconia; ZrSi, silica-coated Zr.