Effect of single-dose low-level helium-neon laser irradiation on orthodontic pain: a split-mouth single-blind placebo-controlled randomized clinical trial.
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Sobouti F, Khatami M, Chiniforush N, Rakhshan V, Shariati M.
Prog Orthod. 2015 Dec;16(1):32. doi: 10.1186/s40510-015-0102-0. Epub 2015 Sep 29.