Effects of 405-, 532-, 650-, and 940-nm wavelengths of low-level laser therapies on orthodontic tooth movement in rats

Progress in Orthodontics

Table 1 Evaluation of the amount of molar mesialization between the groups (mm)

Group/variable	Molar mesialization (mm)						95% confidence interval for mean							p
Group/variable	Mean			S.D.			Lower bound				Upper bound			p
NC	0.000			0.000			0.000				0.000			< 0.001*
PC	0.467			0.357			0.192				0.741
405 nm	0.644			0.261			0.443				0.845
532 nm	0.731			0.173			0.598				0.864
650 mm	0.878			0.201			0.724				1.032
940 nm	0.723			0.230			0.559				0.887
Pairwise comparisons, p values
MM	NC-PC	NC-405 nm	NC-532 nm	NC-650 nm	NC-940 nm	PC-405 nm	PC-532 nm	PC-650 nm	PC-940 nm	405–532 nm	405–650 nm	405–940 nm	532–650 nm	532–940 nm	650–940 nm
MM	0.000*	0.000*	0.000*	0.000*	0.000*	0.331	0.070	0.017*	0.165	0.251	0.042*	0.462	0.270	0.513	0.683

MM amount of molar mesialization, NC negative control group, PC positive control group, S.D. standard deviation
Significant degree: *p < 0.05