?A Comparsion Between Pulsed and Continuous CO2 Laser Effect in Recurrent Aphthous Stomatitis and Comparing its Effects with Common Treatment Local Triamcinolone 0.1% : A randomised clinical trial

The effect of pulsed CO2 laser and continuous CO2 laser on the severity of pain in oral aphthous lesions,compared the pain intensity before intervention with all post-intervention follow up hours,including immediately after treatment and 12,24,48 and 72 hours after intervention,statistically was meaningful.while at immediately and 72 h after treatment follow ups in the usual treatment group,pain relief was significantly different from the pretreatment;but this significantly different was not observed in other follow up hours.comparing the size of the ulcer on days 1,3,5 and 7 after treatment shows the difference was significant between the first and seventh day in pulsed laser group.this difference between the first,fifth and seventh day in countinuous laser group and the usual treatment group was significant.