Table 3.
Distribution of failure modes after shear bond strength testing (n = 16/group; BAC: benzalkonium chloride).
| Adhesive system Dentin |
Cohesive failures in dentin (%) | Adhesive failures at dentin/adhesive interface (%) | Mixed failures (%) |
|---|---|---|---|
| After 24-hour storage | |||
|
| |||
| Adper Scotchbond 1XT without 1% BAC | |||
| Normal dentin | 12.5 | 62.5 | 25 |
| Adper Scotchbond 1XT without 1% BAC | |||
| Artificially eroded dentin | 0 | 100 | 0 |
| Adper Scotchbond 1XT with 1% BAC | |||
| Normal dentin | 0 | 87.5 | 12.5 |
| Adper Scotchbond 1XT with 1% BAC | |||
| Artificially eroded dentin | 0 | 87.5 | 12.5 |
| OptiBond FL without 1% BAC | |||
| Normal dentin | 6.25 | 75 | 18.75 |
| OptiBond FL without 1% BAC | |||
| Artificially eroded dentin | 0 | 100 | 0 |
| OptiBond FL with 1% BAC | |||
| Normal dentin | 6.25 | 87.5 | 6.25 |
| OptiBond FL with 1% BAC | |||
| Artificially eroded dentin | 0 | 100 | 0 |
|
| |||
| After 1-year storage | |||
|
| |||
| Adper Scotchbond 1XT without 1% BAC | |||
| Normal dentin | 6.25 | 75 | 18.75 |
| Adper Scotchbond 1XT without 1% BAC | |||
| Artificially eroded dentin | 0 | 100 | 0 |
| Adper Scotchbond 1XT with 1% BAC | |||
| Normal dentin | 6.25 | 93.75 | 0 |
| Adper Scotchbond 1XT with 1% BAC | |||
| Artificially eroded dentin | 0 | 100 | 0 |
| OptiBond FL without 1% BAC | |||
| Normal dentin | 0 | 81.25 | 18.75 |
| OptiBond FL without 1% BAC | |||
| Artificially eroded dentin | 0 | 100 | 0 |
| OptiBond FL with 1% BAC | |||
| Normal dentin | 0 | 93.75 | 6.25 |
| OptiBond FL with 1% BAC | |||
| Artificially eroded dentin | 0 | 100 | 0 |