Table 3 Summary of maximum transformation rate and surface roughness of retrieved yttria stabilized zirconia heads
| N | Duration | Transformation rate | Surface roughness | |
|---|---|---|---|---|
| (years) | (%) | Ra (μm) | ||
| Hayaishi et al. [24] | 1 | 1 | 13 | 0.01 |
| Hernigou et al. [26] | 3 | 8-11 | 30 | 0.05 |
| Haraguchi et al. [27] | 2 | 3, 6 | 37 | 0.12 |
| Roy et al. [23] | 7 | 0.04-11 | 49 | 0.03 |
| Fernandez-Fairen et al. [8] | 47 | 2-10 | 65 | 0.30 |
| Santos et al. [28] | 18 | 0.2-10 | 70 | 0.04 |
| Present study | 3 | 1.5-3 | 51 | 0.06 |
