Figure 5

Evaluation of pain and root resorption. (a) VAS score. The horizontal axis indicated the period during and after the vibration, and the vertical axis indicated the VAS score (maximum value: 100). The VAS score increased from 1 h after the vibration and reached a maximum value at 6 h, after which VAS score decreased in the TM and TM + V groups. The mean VAS score did not exceed 1 mm after the 7th day. No significant difference was observed between the TM and TM + V groups at all time points. (b) Changes in crown root ratio before and after canine retraction.