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Means and standard deviations (SD) of marginal gap size (μm) in the study groups and subgroups (N=15)
| Cavity disinfection | Bonding strategy | Min | Max | Mean±SD |
|---|---|---|---|---|
| No use of chlorhexidine | Self-etch | 4.31 | 7.20 | 5.77±0.98 |
| Etch and rinse | 2.97 | 7.07 | 4.74±1.25 | |
| Use of chlorhexidine | Self-etch | 3.60 | 9.79 | 7.07±1.62 |
| Etch and rinse | 4.49 | 9.17 | 5.86±1.47 |
