SAFFAF, R., and R. EL-SABBAGH. “Oropharyngeal Airway Changes After Rapid Maxillary Expansion Assisted by Laser : A Cephalometric Study”. International Arab Journal of Dentistry (IAJD), Vol. 7, no. 3, Oct. 2016, pp. 109-17, doi:10.70174/iajd.v7i3.168.