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Face validity.
| Expert group | |
|---|---|
| n = 16 | |
| Global assessment | 3.4 ± 1.1 |
| Appearance of anatomical structures | 3.5 ± 1.0 |
| Appearance of anatomical rapports | 4.3 ± 0.6 |
| Appearance of drill | 3.6 ± 0.7 |
| Controlling of drill | 3.1 ± 1.1 |
| Haptic feedback | 3.1 ± 1.0 |
| Performance of drill | 3.9 ± 0.7 |
| Ergonomics | 2.5 ± 1.2 |
Data is presented mean ± standard deviation.
