Low‐level laser therapy using laser diode 940 nm in the mandibular impacted third molar surgery: double-blind randomized clinical trial

Table 3 Comparison of swelling in the two groups

Swelling	Laser		Placebo		p value
Swelling	Mean	SD	Mean	SD	p value
Before surgery	150.4	9.00	151.2	7.53	0.474
Immediately after surgery	152.4	8.79	152.2	7.51	0.889
2nd day after surgery	156.8	9.11	159.72	7.84	0.174
7th day after surgery	150	7.5	153.2	6.43	0.112

ISSN: 1472-6831