Table 2.
Mean MPa values of the study groups
| MPa | Fracture types (Adhesive/Cohesive/Mixed) |
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|---|---|---|---|---|---|---|---|
| Group | Adhesive | Composite Curing Time | Surface Treatment | n | Mean | SD | |
| 1 (SB-20-SE) | Single Bond Universal | 20 s | - | 20 | 19.7 d, e | 2.4 | 18/0/2 |
| 2 (SB-20-3) | 3 s AE | 20 | 22.2 e | 3.8 | 16/1/3 | ||
| 3 (SB-20-15) | 15 s AE | 20 | 12.3 a, b | 1.1 | 17/0/3 | ||
| 4 (SB-40-SE) | 40 s | - | 20 | 19.2 c, d,e | 5.3 | 16/0/4 | |
| 5 (SB-40-3) | 3 s AE | 20 | 29 f | 3 | 15/1/4 | ||
| 6 (SB-40-15) | 15 s AE | 20 | 16.8 c, d | 2.7 | 18/1/1 | ||
| 7 (AU-20-SE) | Adhese Universal | 20 s | - | 20 | 10.9 a | 3.1 | 15/0/5 |
| 8 (AU-20-3) | 3 s AE | 20 | 22 e | 3.6 | 17/1/2 | ||
| 9 (AU-20-15) | 15 s AE | 20 | 15.7 b, c | 2.1 | 18/0/2 | ||
| 10 (AU-40-SE) | 40 s | - | 20 | 20.2 d, e | 3.5 | 17/0/3 | |
| 11 (AU-40-3) | 3 s AE | 20 | 29.3 f | 4.2 | 16/2/2 | ||
| 12 (AU-40-15) | 15 s AE | 20 | 19.4 d, e | 4.8 | 17/1/2 | ||
|
Same superscript letters show statistically homogeneous subgroups (p > 0.05) SB: Single Bond Universal, SE: self-etch, AU: Adhese Universal, AE: asit-etching |
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