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Means and standard deviations of rating by dentists and lay people to crown width discrepancy. (CW: Crown width in mm).
| Dentists | Lay people | t-test | p-Value | |
|---|---|---|---|---|
| CW 0 | 45.4 ± 24.1 | 51 ± 25.4 | −1.232 | .221 NS |
| CW 1 | 44 ± 21.6 | 48.2 ± 25.8 | −.976 | .331 NS |
| CW 2 | 43 ± 23 | 52.4 ± 23.7 | −2.212 | .029⁎ |
| CW 3 | 30.5 ± 21.5 | 42.6 ± 25.4 | −2.821 | .006⁎⁎ |
| CW 4 | 32.9 ± 23.5 | 44.3 ± 26.1 | −2.497 | .014⁎ |
NS: Not significant.
∗∗∗p < 0.001.
p < 0.05.
p < 0.01.
