Descriptive and analytical statistics of shear bond strength (MPa) of the three groups (n=20)_
| Group | Composite | Mean | Std. deviation | Minimum | Maximum | Tukey’s Test |
|---|---|---|---|---|---|---|
| I | Transbond XT with primer | 12.66 | 3.3 | 7.18 | 18.21 | A* |
| II | GC Ortho Connect | 15.50 | 3.25 | 10.82 | 20.78 | B |
| III | Transbond XT without primer | 11.18 | 4.94 | 5.50 | 24.28 | A |
Experimental groups (n=20)_
| Groups | Etchant | Primer | Composite resin |
|---|---|---|---|
| I | 37% phosphoric acid | Transbond XT | Transbond XT |
| II | 37% phosphoric acid | – | GC Ortho Connect |
| III | 37% phosphoric acid | – | Transbond XT |
Frequency distribution and percentage of the adhesive ARI scores in the three groups(n=20)_
| ARI score* | ||||||
|---|---|---|---|---|---|---|
| Groups | Composite | 0 | 1 | 2 | 3 | Mann–Whitney U Test |
| I | Transbond XT with primer | 9 (45%) | 6 (30%) | 4 (20%) | 1 (5%) | A** |
| II | GC Ortho Connect | 5 (25%) | 2 (10%) | 8 (40%) | 5 (25%) | B |
| III | Transbond XT without primer | 11 (55%) | 4 (20%) | 4 (20%) | 1 (5%) | A |