Research Article
Shear Bond Strength of Orthodontic Brackets and Disinclusion Buttons: Effect of Water and Saliva Contamination
Table 2
Descriptive statistics (in MPa) of shear bond strengths of the 6 groups tested (each group consisted of 20 specimens).
| Group | Appliance | Contamination | Mean | SD | Min | Median | Max | Tukey* |
| 1 | Orthodontic bracket | Dry environment | 14.65 | 3.21 | 7.34 | 13.78 | 21.11 | A | 2 | Orthodontic bracket | Water contamination | 3.33 | 1.53 | 1.34 | 3.28 | 5.78 | B | 3 | Orthodontic bracket | Saliva contamination | 3.12 | 1.01 | 1.14 | 3.02 | 5.34 | B | 4 | Disinclusion button | Dry environment | 14.04 | 2.23 | 9.98 | 14.55 | 20.43 | A | 5 | Disinclusion button | Water contamination | 5.89 | 1.21 | 3.95 | 5.96 | 7.94 | C | 6 | Disinclusion button | Saliva contamination | 5.78 | 0.97 | 4.07 | 5.88 | 7.03 | C |
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Tukey grouping: means with the same letter are not significantly different.
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