Amid, Reza, Mahdi Kadkhodazadeh, Reza Fekrazad, and Farzin Hajizadeh. 2012. “Effect of Hand, Ultrasonic Scaler and Erbium-Doped Yttrium Aluminum Garnet (Er: YAG) Laser on the Morphology of Root Surfaces With Periodontitis: A Comparative in Vitro Scanning Electron Microscopy Study”. Journal of Lasers in Medical Sciences 3 (3):122-26. https://journals.sbmu.ac.ir/jlms/article/view/3153.