Abstract
Objectives: This study aimed to clinically evaluate the efficacy of low-level laser therapy (LLLT) in reducing pain associated with orthodontic movement during the early stages of treatment. Material and Methods: A randomized controlled trial was conducted with 20 participants undergoing non-extraction orthodontic treatment. The laser group (LG, n = 10) received LLLT (808 nm, 100 mW) immediately after appliance installation, while the control group (CG, n = 10) received no pain control intervention. Pain levels were assessed using a visual analog scale (VAS) at 6, 24, 48, and 72 h till 7 days with an interval of 24 h. Statistical analyses included Chi-square tests and Mann–Whitney tests. Results: The LG consistently demonstrated significantly lower pain scores during chewing and at rest compared to the CG. After 6 h post-treatment, the median pain score on chewing in the LG was markedly lower than the CG (P < 0.001), a trend observed at each subsequent interval till 7 days. The comparison of spontaneous pain also favored the LG at various time points. Lower median VAS scores for pain on chewing among the LG and CG were zero and two, respectively, with a significant difference. The maximum median VAS scores for pain on chewing among the LG and CG were five and seven, respectively, with a significant difference. Conclusion: This study provides robust evidence supporting the effectiveness of LLLT in reducing orthodontic pain during the early stages of treatment. The sustained and significant reduction in pain scores, coupled with rigorous statistical analyses, emphasizes the potential of LLLT as a valuable adjunctive therapy in orthodontic practice.
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