Table 3. Shear bond strength values (MPa) for each group.
| Group | n | Mean | SD | Min | Max |
|---|---|---|---|---|---|
| PO (polishing unglazed zirconia)-Z* | 10 | 13.38a | 2.57 | 9.75 | 18.22 |
| BR (bur roughening)-Z | 10 | 15.48a | 3.15 | 10.68 | 19.92 |
| PP (cleaning)-S† | 10 | 14.90a | 2.75 | 10.93 | 18.91 |
| HF (hydrofluoric acid etching)-S | 10 | 15.24a | 3.36 | 8.49 | 20.16 |
| AA (alumina air-abrasion)-S | 10 | 15.78a | 2.39 | 11.23 | 19.02 |
| AA (alumina air-abrasion)-Z | 10 | 4.60b | 1.08 | 2.76 | 5.98 |
| CJ (CoJet-Sand air-abrasion)-S | 10 | 14.81a | 2.91 | 10.01 | 19.75 |
*Z-Prime Plus; †Monobond-S.
One-way ANOVA showed a significant difference in mean shear bond strength among the groups (p < 0.001); the Tukey post hoc test showed that means with the same superscripted letter were not significantly different (p > 0.05).
SD, standard deviation; Min, minimum value; Max, maximum value.