Table 3.

The mean visual analog scale changes at different postoperative intervals relative to the baseline in the three study groups (confidence interval 95%)

Time interval	Control group	810-nm laser group	980-nm laser group	P
15 min after the first session	−0.6±0.3	−2.3±0.5	−2.2±0.5	0.016
15 min after the second session	−0.9±0.5	−3.4±0.4	−3±0.4	<0.001
After 1 week	−0.7±0.3	−3.5±0.3	−3.4±0.5	<0.001
After 30 days	−0.7±0.3	−4±0.4	−3.1±0.5	<0.001
After 60 days	−0.9±0.3	−4±0.4	−3±0.5	<0.001