| Group |
N |
Mean SBS (MPa) |
Standard Deviation |
Standard Error |
95% confidence interval |
| 2A manufacturer protocol |
20 |
27.40 |
5.33 |
1.20 |
24.89-29.88 |
| 2B additional primer application |
20 |
27.82 |
3.91 |
.88 |
25.98-29.65 |
| 2C additional dentin etch |
20 |
27.72 |
4.60 |
1.03 |
25.57-29.87 |
| 2D manufacturer’s total etch protocol |
20 |
23.84 |
7.24 |
1.62 |
20.45-27.23 |
|
