Tuladhar, Wimby, et al. “Alveolar Bone Changes Around Upper Incisors in Class I Non Extraction Patient After Orthodontic Treatment Using Cone Beam Computed Tomography”. Orthodontic Journal of Nepal, vol. 11, no. 1, Aug. 2021, pp. 18-23, doi:10.3126/ojn.v11i1.39043.