Table 4.
Fracture mode according to strategy, dentin pretreatment and time point
| Strategy | Time point | Pretreatment | Adhesive | Cohesive in resin | Cohesive in dentin | Mixed |
|---|---|---|---|---|---|---|
| n (%*) | ||||||
| Etch-and-rinse | 24 h | CON | 22 (55.0%) | 5 (12.5%) | 12 (30.0%) | 1 (2.5%) |
| DMSO | 20 (51.3%) | 5 (12.8%) | 12 (30.8%) | 2 (5.1%) | ||
| DMSO/ water | 20 (50.0%) | 5 (12.5%) | 15 (37.5%) | 0 (0.0%) | ||
| DMSO/ ethanol | 19 (47.5%) | 9 (22.5%) | 12 (30.0%) | 0 (0.0%) | ||
| p-value | p = 0.8172 | |||||
| Etch-and-rinse | 6 months | CON | 11 (28.21%) | 13 (33.3%) | 9 (23.1%) | 6 (15.4%) |
| DMSO | 19 (48.7%) | 13 (33.3%) | 5 (12.8%) | 2 (5.1%) | ||
| DMSO/ water | 25 (67.6%) | 6 (16.2%) | 6 (16.2%) | 0 (0.0%) | ||
| DMSO/ ethanol | 21 (55.3%) | 11 (29.0%) | 5 (13.2%) | 1 (2.6%) | ||
| p-value | p = 0.0222 | |||||
| Self-etch | 24 h | CON | 13 (61.9%) | 3 (14.3%) | 3 (14.3%) | 2 (9.5%) |
| DMSO/ water | 1 (5.3%) | 8 (42.1%) | 5 (26.3%) | 5 (26.3%) | ||
| DMSO/ ethanol | 7 (38.9%) | 9 (50.0%) | 1 (5.6%) | 1 (5.6%) | ||
| DMSO/ water | 5 (22.7%) | 7 (31.8%) | 0 (0.0%) | 10 (45.5%) | ||
| p-value | p = 0.0001 | |||||
| Self-etch | 6 months | CON | 9 (64.3%) | 1 (7.1%) | 2 (14.3%) | 2 (14.3%) |
| DMSO | 5 (38.5%) | 2 (15.4%) | 3 (23.1%) | 3 (23.1%) | ||
| DMSO/ water | 9 (47.4%) | 3 (15.8%) | 1 (5.3%) | 6 (31.6%) | ||
| DMSO/ ethanol | 8 (50.0%) | 3 (18.8%) | 1 (6.3%) | 4 (25.0%) | ||
| p-value | p = 0.8439 | |||||
*Percentage in rows.