Table 6.
Comparison of root axis angle to occlusal plane between estimated and actual tooth models in manual method (unit: degree)
| Estimated tooth model | Actual tooth model | P value* | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Max | Min | Mean | SD | Max | Min | ||
| Maxilla | |||||||||
| Incisors | 58.4 | 4.4 | 70.3 | 49.0 | 58.8 | 3.9 | 67.2 | 52.7 | 0.461 |
| Canine | 67.0 | 4.1 | 72.0 | 58.4 | 67.3 | 3.7 | 73.4 | 62.7 | 0.763 |
| Second premolar | 78.6 | 4.5 | 86.3 | 69.6 | 78.5 | 5.4 | 86.0 | 71.8 | 0.949 |
| First molar | 79.4 | 4.4 | 87.1 | 74.4 | 79.8 | 5.4 | 88.5 | 73.7 | 0.741 |
| Mandible | |||||||||
| Incisors | 58.4 | 5.1 | 70.5 | 51.7 | 58.6 | 5.0 | 68.8 | 52.2 | 0.648 |
| Canine | 67.5 | 5.4 | 77.0 | 62.0 | 66.9 | 6.0 | 76.9 | 60.3 | 0.294 |
| Second premolar | 74.8 | 4.1 | 82.4 | 67.8 | 74.0 | 3.1 | 78.5 | 68.3 | 0.468 |
| First molar | 76.8 | 5.1 | 86.2 | 68.4 | 77.7 | 4.9 | 86.5 | 68.7 | 0.338 |
SD, Standard deviation
*The results of paired t test