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Mean and standard deviation of internal gap (μm) of the experimental groups.
| Group | Mean width of internal gap (μm) |
Percentage of specimens with gap free interfaces |
|---|---|---|
| 1 | 10.3 ± 2.2A | 40% |
| 2 | 22.5 ± 5.1B | 10% |
| 3 | 12.4 ± 2.4A | 30% |
| 4 | 18.2 ± 4.5B | 10% |
| 5 | 20.4 ± 4.3B | 20% |
Same letter indicates no statistically significant difference (P < 0.05).
