Low Level Laser Therapy Protocol In this study, an 630-660 nm aluminum gallium indium phosphide (AlGalnP) laser device (Scorpion Dental Optima Model 405-7A; Optica Laser, Sofia, Bulgaria) was used immediately after surgery, third day, fifth day and seventh day only for one operation side. Treatment side were randomly selected by another surgeon who applied LLLT. Tissue was irradiated at 25mW power for total six minutes, two minutes for each point (buccal, palatal, crestal). 72J /cm2 energy density was deposited in one session.