Table 8.
Root control effect along the significant tipping direction
| Tooth | Anterior teeth | Posterior teeth | ||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 5 | 6 | 7 | |
| Moderate anchorage group (maxilla) | 2.106L | 2.164L | 1.818D | 2.533 M | 2.673 M | 3.064 M |
| Moderate anchorage group (mandible) | 2.414L | 2.299L | 1.653D | 3.456 M | 7.760 M | 8.730 M |
| Indirect anchorage group (maxilla) | 2.147L | 2.225L | 1.870D | 0.974 M | 2.175 M | 2.356 M |
| Indirect anchorage group (mandible) | 3.149L | 3.071L | 2.108D | 0.500 M | 0.936 M | 0.879 M |
| Direct anchorage group (maxilla) | 2.093L | 2.212L | 1.903D | 2.482 M | 2.826 M | 3.280 M |
| Direct anchorage group (mandible) | 2.471L | 2.394L | 1.790D | 3.316 M | 8.052 M | 11.238 M |
| 150 g elastic force group (maxilla) | 2.057L | 3.879L | 3.200D | 1.477D | 1.880D | 1.906D |
| 150 g elastic force group (mandible) | 7.174L | 16.461L | 11.018D | 2.537D | 4.484D | 3.684D |
The root control effect is reflected by the crown-root movement ratio; the calculation is described in the Methodology section. The value with the same direction can be directly compared; the larger the value, the greater the root control ability of the corresponding direction. L, lingual root control ability; M, mesial root control ability; D, distal root control ability. 1, central incisor; 2, lateral incisor; 3, canine; 5, second premolar; 6, first molar; 7, second molar