Table 2. Number of wear traces (sum total, strong traces; *: human tooth) of groups differing in crown material (lithium disilicate, zirconia) and abutment situation (resin tooth, implant).
| Number of wear traces | Resin tooth (T) | Implant (I) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lithium disilicate (Li) | Zirconia (Zr) | Lithium disilicate (Li) | Zirconia (Zr) | Tooth (reference) | ||||||
| total | strong | total | strong | total | strong | total | strong | total | strong | |
| #25 | 18 | 1 | 19 | 1 | 19 | 1 | 18 | 0 | 10 | 0 |
| #26 (Antagonist) | 27 | 6 | 29 | 12 | 29 | 4 | 27 | 11 | 21 | 0 |
| #27 | 20 | 5 | 20 | 3 | 25 | 2 | 20 | 3 | 20 | 0 |
| #35 | 11 | 0 | 20 | 1 | 22 | 0 | 19 | 0 | 13 | 0 |
| #36 (Crown) | 31 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 21* | 0* |
| #37 | 20 | 2 | 32 | 1 | 21 | 3 | 21 | 1 | 15 | 0 |