Effect of Low-Intensity Pulsed Ultrasound (LIPUS) on Alveolar Bone during Maxillary Expansion Using Clear Aligners

Figure 1

Obtaining measurements and recordings. Second premolar of the control group (a) before treatment (primary sagittal) and (b) after treatment (secondary sagittal). Procedure to obtain accurate measurements. (c) Bone thickness at the canine area before (left) and after (right) treatment with clear aligner only (control group). (d) Bone thickness at the canine area before (left) and after (right) treatment with LIPUS with clear aligner (experimental group).

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