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Failure mode frequency (number)
| Group | Number of samples | Fracture mode | ||
|---|---|---|---|---|
| Adhesive failure | Mixed failure | Cohesive failure | ||
| N1 | 10 | 10 | 0 | 0 |
| S1 | 10 | 10 | 0 | 0 |
| N2 | 10 | 9 | 0 | 1 |
| S2 | 10 | 7 | 0 | 3 |
| N3 | 10 | 10 | 0 | 0 |
| S3 | 10 | 7 | 0 | 3 |
| N4 | 10 | 10 | 0 | 0 |
| S4 | 10 | 10 | 0 | 0 |
| N5 | 10 | 10 | 0 | 0 |
| S5 | 10 | 10 | 0 | 0 |
| N6 | 10 | 10 | 0 | 0 |
| S6 | 10 | 9 | 0 | 1 |
| N7 | 10 | 10 | 0 | 0 |
| S7 | 10 | 10 | 0 | 0 |
| N8 | 10 | 9 | 1 | 0 |
| S8 | 10 | 8 | 1 | 1 |
Note: N1-N8 represent normal dentine groups, S1-S8 represent sclerotic dentine groups
