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Efficacy of low-level laser therapy in treatment of recurrent aphthous ulcers – a sham controlled, split mouth follow up study
Researchers treated 30 canker sore patients with 1 session of green light therapy.
They broke the session into four treatment sections.
The 4-part treatment significantly reduced patients’ pain and lesion size.
Treated subjects healed in 3 days on average. Sham subjects healed in 8 days.