Table 4.
Mechanical properties of restorative composites after 7 days since curing, according to light source and curing mode. All the results are reported in terms of mean values and standard deviation (in brackets).
| EPH | DEI | CLM | SDR | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LCU | Elastic Modulus (MPa) | Max. Stress (MPa) | Max. Strain (%) | Elastic Modulus (MPa) | Max. Stress (MPa) | Max. Strain (%) | Elastic Modulus (MPa) | Max. Stress (MPa) | Max. Strain (%) | Elastic Modulus (MPa) | Max. Stress (MPa) | Max. Strain (%) |
| Laser (Mode I) | 8.6 (±0.7) | 120.3 (±6.3) | 2.2 (±0.1) | 3.6 (±0.2) | 61.9 (±4.1) | 2.8 (±0.2) | 6.0 (±0.7) | 76.0 (±5.4) | 1.4 (±0.1) | 5.7 (±0.5) | 107.5 (±5.9) | 4.1 (±0.2) |
| Laser (Mode II) | 8.4 (±0.8) | 119.8 (±5.9) | 2.1 (±0.2) | 3.5 (±0.3) | 60.2 (±4.8) | 2.7 (±0.2) | 5.9 (±0.5) | 74.6 (±4.6) | 1.4 (±0.1) | 5.4 (±0.7) | 105.8 (±6.1) | 4.3 (±0.3) |
| LED Mectron (Mode I) | 8.7 (±0.7) | 121.9 (±5.8) | 2.3 (±0.1) | 3.8 (±0.2) | 63.4 (±3.8) | 2.9 (±0.1) | 6.4 (±0.4) | 77.8 (±4.3) | 1.4 (±0.1) | 5.7 (±0.4) | 109.2 (±4.9) | 4.4 (±0.2) |
| LED Enfis (Mode II) | 8.1 (±0.7) | 118.3 (±5.4) | 2.2 (±0.1) | 3.5 (±0.2) | 56.7 (±5.3) | 3.0 (±0.2) | 6.3 (±0.5) | 73.7 (±5.1) | 1.3 (±0.1) | 4.9 (±0.4) | 93.0 (±6.8) | 5.0 (±0.3) |