Fig. 3

Subgroup meta-analysis comparing intraoral laser therapy to conventional treatment and placebo at intervals: (a) 4–6 h, (b) 8 h, (c) 12 h, (d) 24–30 h, (e) 48–72 h, and (f) 7 days.

Subgroup meta-analysis comparing intraoral laser therapy to conventional treatment and placebo at intervals: (a) 4–6 h, (b) 8 h, (c) 12 h, (d) 24–30 h, (e) 48–72 h, and (f) 7 days.