Birang, Reza Comparison of Er:YAG Laser and Ultrasonic Scaler in the Treatment of Moderate Chronic Periodontitis: A Randomized Clinical Trial. [electronic resource] - Journal of lasers in medical sciences 2017 - 51-55 p. digital Publication Type: Journal Article ISSN: 2008-9783 Standard No.: 10.15171/jlms.2017.10 doi