Laser and Ultrasound Therapies Equally Effective in Reducing Orthodontic Pain, Study Reveals

A randomized controlled trial has demonstrated that both low-level laser therapy (LLLT) and low-intensity pulsed ultrasound (LIPUS) are effective in reducing pain caused by orthodontic separation. 
The study involved 145 patients, divided into three groups: LLLT, LIPUS, and a control group that received no additional intervention beyond separator placement.
Pain intensity was measured using a Visual Analog Scale (VAS) at multiple time points over four days. The LLLT and LIPUS groups received three treatment doses—immediately after separator placement, and at 24 and 48 hours—applied to the maxillary and mandibular first molars. 
Both therapies significantly reduced pain compared to the control group at all assessment points (P < .001). The highest pain levels were reported 24 hours after separator placement, but patients receiving either LLLT or LIPUS experienced considerable relief.
Interestingly, there was no significant difference in pain reduction between the laser and ultrasound groups, indicating that both modalities are equally effective in managing orthodontic pain. 
This study highlights the potential of these non-invasive therapies in improving patient comfort during orthodontic procedures, offering a promising adjunct to standard treatment protocols for pain management without the need for pharmacological intervention.