Antibacterial Effect of Red Laser Therapy on Using Different Photosensitizers: An In Vitro Study.

Objective: To assess the antibacterial effect of red laser using different photosensitizers such as methylene blue and malachite green on monoradicular premolars contaminated with ATCC 29212.

Methods: This was an in vitro experimental study. Monoradicular premolars (44, 45, 34, and 35) were used, which were treated with ProTaper Next.