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| Study group | Number | Degree of microleakage |
|||
|---|---|---|---|---|---|
| Grade zero Number (%) | Grade one Number (%) | Grade two Number (%) | Grade three Number (%) | ||
| Control | 15 | 8 (53.3%) | 1 (6.7%) | 4 (26.7%) | 2 (13.3%) |
| Gluma® | 15 | 9 (60%) | 3 (20%) | 2 (13.3%) | 1 (6.7%) |
| CO2 laser | 15 | 7 (46.7%) | 0 (0%) | 1 (6.7%) | 7 (46.7%) |
| Er:YAG laser | 15 | 3 (20%) | 0 (0%) | 4 (26.7%) | 8 (53.3%) |
