Table 7.
The zones of ideal anatomy from the perspectives of laypeople, dentists, and orthodontists (P > 0.05, Bonferroni). The full results of the Bonferroni test are presented as Appendix 2. The first number shows the extent of gingival display and the second number shows the buccal corridor width. Note: The perceptometric images are sorted in this table after data collection (for a better visualization); during the survey, the perceptometric images were randomized
| Expertise | Image (I) | Image (J) | Mean Difference (I-J) | SE | P | 95% CI | |
|---|---|---|---|---|---|---|---|
| Laypeople | Long 0mm 15% (the most attractive image) | Long 2mm 25% | 1.833 | 0.224 | 0.000000 | 0.879 | 2.788 |
| Short 2mm 25% | 1.833 | 0.189 | 0.000000 | 1.027 | 2.640 | ||
| Short 2mm 20% | 1.833 | 0.193 | 0.000000 | 1.009 | 2.658 | ||
| Long 2mm 20% | 1.639 | 0.226 | 0.000006 | 0.674 | 2.603 | ||
| Normal 2mm 25% | 1.528 | 0.213 | 0.000008 | 0.620 | 2.436 | ||
| Short 6mm 15% | 1.556 | 0.216 | 0.000008 | 0.633 | 2.478 | ||
| Long 2mm 15% | 1.306 | 0.218 | 0.000270 | 0.377 | 2.234 | ||
| Short 2mm 2% | 1.361 | 0.246 | 0.001126 | 0.311 | 2.412 | ||
| Normal 2mm 20% | 1.083 | 0.180 | 0.000252 | 0.316 | 1.851 | ||
| Long 6mm 15% | 1.111 | 0.177 | 0.000119 | 0.355 | 1.867 | ||
| Normal 6mm 15% | 1.000 | 0.191 | 0.002776 | 0.184 | 1.816 | ||
| Long 2mm 2% | 1.444 | 0.197 | 0.000005 | 0.604 | 2.285 | ||
| Short 2mm 15% | 1.333 | 0.218 | 0.000194 | 0.402 | 2.265 | ||
| Short 2mm 10% | 1.306 | 0.238 | 0.001333 | 0.288 | 2.323 | ||
| Long 2mm 10% | 1.250 | 0.208 | 0.000274 | 0.360 | 2.140 | ||
| Short 4mm 15% | 1.056 | 0.178 | 0.000333 | 0.296 | 1.815 | ||
| Normal 2mm 15% | 0.861 | 0.219 | 0.131781 | -0.073 | 1.795 | ||
| Normal 2mm 2% | 0.750 | 0.277 | 1.000000 | -0.433 | 1.933 | ||
| Normal 2mm 10% | 0.833 | 0.227 | 0.282101 | -0.136 | 1.803 | ||
| Short 0mm 15% | 0.917 | 0.223 | 0.080174 | -0.036 | 1.869 | ||
| Normal 4mm 15% | 0.472 | 0.201 | 1.0 | -0.386 | 1.331 | ||
| Long 4mm 15% | 0.472 | 0.189 | 1.0 | -0.334 | 1.279 | ||
| Short 2mm 15% | 0.694 | 0.202 | 0.548345 | -0.170 | 1.559 | ||
| Normal 0mm 15% | 0.333 | 0.203 | 1.0 | -0.534 | 1.201 | ||
| Long 2mm 15% | 0.222 | 0.187 | 1.0 | -0.578 | 1.022 | ||
| Normal 2mm 15% | 0.194 | 0.168 | 1.0 | -0.524 | 0.912 | ||
| Dentist | Long 0mm 15% (the most attractive image) | Long 2mm 25% | 2.278 | 0.181 | 0.000000 | 1.506 | 3.050 |
| Short 2mm 25% | 2.278 | 0.181 | 0.000000 | 1.506 | 3.050 | ||
| Short 2mm 20% | 2.139 | 0.192 | 0.000000 | 1.321 | 2.957 | ||
| Long 2mm 20% | 1.889 | 0.210 | 0.000000 | 0.993 | 2.785 | ||
| Normal 2mm 25% | 1.750 | 0.234 | 0.000003 | 0.753 | 2.747 | ||
| Short 6mm 15% | 1.778 | 0.200 | 0.000000 | 0.926 | 2.630 | ||
| Long 2mm 15% | 1.833 | 0.180 | 0.000000 | 1.063 | 2.603 | ||
| Short 2mm 2% | 1.361 | 0.236 | 0.000558 | 0.353 | 2.369 | ||
| Normal 2mm 20% | 1.694 | 0.214 | 0.000001 | 0.781 | 2.607 | ||
| Long 6mm 15% | 1.472 | 0.171 | 0.000000 | 0.741 | 2.203 | ||
| Normal 6mm 15% | 1.333 | 0.222 | 0.000262 | 0.386 | 2.280 | ||
| Long 2mm 2% | 1.333 | 0.215 | 0.000142 | 0.417 | 2.249 | ||
| Short 2mm 15% | 1.389 | 0.184 | 0.000003 | 0.604 | 2.173 | ||
| Short 2mm 10% | 1.139 | 0.262 | 0.039183 | 0.022 | 2.256 | ||
| Long 2mm 10% | 1.000 | 0.236 | 0.054009 | -0.006 | 2.006 | ||
| Short 4mm 15% | 0.889 | 0.217 | 0.084746 | -0.039 | 1.817 | ||
| Normal 2mm 15% | 1.111 | 0.221 | 0.005190 | 0.168 | 2.055 | ||
| Normal 2mm 2% | 1.083 | 0.291 | 0.242961 | -0.159 | 2.326 | ||
| Normal 2mm 10% | 0.861 | 0.252 | 0.578359 | -0.217 | 1.939 | ||
| Short 0mm 15% | 0.444 | 0.216 | 1.0 | -0.478 | 1.367 | ||
| Normal 4mm 15% | 0.722 | 0.189 | 0.187947 | -0.087 | 1.531 | ||
| Long 4mm 15% | 0.722 | 0.141 | 0.004104 | 0.118 | 1.326 | ||
| Short 2mm 15% | 0.778 | 0.259 | 1.0 | -0.326 | 1.881 | ||
| Normal 0mm 15% | 0.528 | 0.201 | 1.0 | -0.331 | 1.386 | ||
| Long 2mm 15% | 0.750 | 0.146 | 0.003606 | 0.128 | 1.372 | ||
| Normal 2mm 15% | 0.250 | 0.205 | 1.0 | -0.623 | 1.123 | ||
| Orthodontist | Long 0mm 15% (the most attractive image) | Long 2mm 25% | 2.194 | 0.153 | 0.000000 | 1.540 | 2.849 |
| Short 2mm 25% | 1.972 | 0.171 | 0.000000 | 1.241 | 2.703 | ||
| Short 2mm 20% | 1.778 | 0.200 | 0.000000 | 0.926 | 2.630 | ||
| Long 2mm 20% | 1.806 | 0.168 | 0.000000 | 1.088 | 2.524 | ||
| Normal 2mm 25% | 1.944 | 0.187 | 0.000000 | 1.148 | 2.741 | ||
| Short 6mm 15% | 1.861 | 0.188 | 0.000000 | 1.061 | 2.662 | ||
| Long 2mm 15% | 1.194 | 0.137 | 0.000000 | 0.610 | 1.779 | ||
| Short 2mm 2% | 1.556 | 0.189 | 0.000000 | 0.750 | 2.361 | ||
| Normal 2mm 20% | 1.417 | 0.171 | 0.000000 | 0.688 | 2.146 | ||
| Long 6mm 15% | 1.472 | 0.171 | 0.000000 | 0.741 | 2.203 | ||
| Normal 6mm 15% | 1.583 | 0.175 | 0.000000 | 0.835 | 2.332 | ||
| Long 2mm 2% | 1.083 | 0.201 | 0.001686 | 0.227 | 1.940 | ||
| Short 2mm 15% | 1.000 | 0.169 | 0.000350 | 0.278 | 1.722 | ||
| Short 2mm 10% | 1.139 | 0.208 | 0.001291 | 0.253 | 2.025 | ||
| Long 2mm 10% | 0.778 | 0.160 | 0.008495 | 0.095 | 1.460 | ||
| Short 4mm 15% | 0.806 | 0.190 | 0.055616 | -0.007 | 1.618 | ||
| Normal 2mm 15% | 0.750 | 0.166 | 0.024051 | 0.041 | 1.459 | ||
| Normal 2mm 2% | 0.806 | 0.221 | 0.304268 | -0.139 | 1.750 | ||
| Normal 2mm 10% | 0.611 | 0.200 | 1.000000 | -0.244 | 1.466 | ||
| Short 0mm 15% | 0.750 | 0.184 | 0.089002 | -0.036 | 1.536 | ||
| Normal 4mm 15% | 0.861 | 0.183 | 0.013913 | 0.079 | 1.643 | ||
| Long 4mm 15% | 0.694 | 0.173 | 0.104034 | -0.043 | 1.432 | ||
| Short 2mm 15% | 0.333 | 0.169 | 1.0 | -0.388 | 1.055 | ||
| Normal 0mm 15% | 0.306 | 0.125 | 1.0 | -0.227 | 0.839 | ||
| Long 2mm 15% | 0.083 | 0.156 | 1.0 | -0.584 | 0.750 | ||
| Normal 2mm 15% | 0.083 | 0.161 | 1.0 | -0.605 | 0.772 | ||
SE standard error, CI Confidence interval