Peeters, H. H., K. Suardita, L. Mooduto, and N. Gutknecht. “Extrusion of Irrigant in Open Apex Teeth With Periapical Lesions Following Laser-Activated Irrigation and Passive Ultrasonic Irrigation”. Iranian Endodontic Journal, vol. 13, no. 2, Apr. 2018, pp. 169-75, doi:10.22037/iej.v13i2.17150.