F. Cremonini, E. . Adversi, P. . Albertini, G. A. . Spedicato, and M. . Palone, “Spontaneous Transversal Changes of Lower Arch Following Palatal Skeletal Expansion”, Pesqui Bras Odontopediatria Clin Integr, vol. 21, p. e0019, Nov. 2021.