The Antibacterial Effect of Nd:YAG Laser Treatment of Teeth with Apical Periodontitis: AÂ Randomized Controlled Trial

After intervention, neither the test group nor the control group yielded predictable negative bacterial samples. Thus, the results failed to verify the hypothesis that Nd:YAG laser irradiation would yield significantly more negative bacterial samples than conventional irrigation with 1% unbuffered sodium hypochlorite solution.