Table 2.
Mean repair bond strengths (megapascals) for the four different composite resins after different aging conditions
| Composite | After IAR-application | After SC-application | ||||||
|---|---|---|---|---|---|---|---|---|
| Non-aged control | Thermocycling | Water storage | Citric acid immersion | Non-aged control | Thermocycling | Water storage | Citric acid immersion | |
| AS | 19.8 ± 4.6 a, A | 2.8 ± 0.8 a, B | 3.8 ± 2.6 a, B | 13.8 ± 6.4 a, C, E | 23.2 ± 1.3 a, A, D | 18.7 ± 6.7 a, b, A | 28.3 ± 7.4 a, D | 11.4 ± 4.0 a, E |
| G | 31.8 ± 5.7 b, A | 10.4 ± 3.8 b, B | 12.7 ± 3.7 b, B | 13.7 ± 3.3 a, B | 32.2 ± 4.2 b, A | 23.0 ± 8.0 a, C | 45.2 ± 5.0 b, D | 13.8 ± 3.1 a, b, B |
| TE | 22.2 ± 6.5 a, A | 11.9 ± 2.4 b, B, E | 8.4 ± 4.6 a, b, B | 18.0 ± 7.1 a, b, A, F | 20.0 ± 5.2 a, A, C | 16.9 ± 6.5 b, C, E, F | 32.2 ± 8.3 a, D | 11.2 3.9 a, B |
| FS | 27.6 ± 6.6 b, A, C | 7.1 ± 3.1 a, b, B | 13.0 ± 8.1 b,E | 23.0 ± 9.8 b, C, F | 29.2 ± 6.4 b, A | 20.9 ± 7.1 a, b, D, F | 21.7 ± 8.6 c, D, F | 17.5 ± 6.9 b, D, E |
Composite surfaces were either conditioned application of an intermediate adhesive resin (IAR) or silica coating (SC). ± denotes standard deviations over ten specimens. For abbreviations see Table 1
Same lowercase letters indicate an insignificant difference between the row; same uppercase letters denote an insignificant difference between the column