Azarsina, Mohadese, et al. “The Effect of Titanium Tetrafluoride Treatment and the CO2 Laser on Acid Resistance of Human Enamel”. Journal of Lasers in Medical Sciences, vol. 10, no. 3, July 2019, pp. 207-10, https://journals.sbmu.ac.ir/jlms/article/view/21398.