Table 1.
Paired sample t test of best fit alignment and manual n-point + global registration in the maxilla (n = 14)
| mean (M ± SD) | Paired difference (M ± SD) |
|||||
|---|---|---|---|---|---|---|
| Best fit alignment | Manual + Global Registration | t | df | Sig.(two-side) | ||
| RMS(mm) | 0.530 ± 0.117 | 0.376 ± 0.067 | 0.154 ± 0.83 | 4.571 | 13 | 0.006* |
| Avg. positive Deviation. (mm) | 0.281 ± 0.090 | 0.191 ± 0.058 | 0.089 ± 0.065 | 3.370 | 13 | 0.020* |
| Avg. negative Deviation. (mm) | -0.238 ± 0.079 | -0.160 ± 0.052 | -0.078 ± 0.044 | -4.350 | 13 | 0.007* |
| Nominal value (mm) | ±(0.150 ± 0.022) | |||||
| Nominal value proportion (%) | 48.58 ± 8.78 | 70.55 ± 7.45 | -21.98 ± 4.16 | -12.939 | 13 | 0.000* |
Note: * P < 0.05. In the RMS, Avg. positive deviation, Avg. negative deviation and nominal value threshold proportion data, there were statistically significant differences between the two registration methods