Maxillary dentoskeletal outcomes of the expander with differential opening and the fan-type expander: a randomized controlled trial - Massaro, Camila; Garib, Daniela Gamba; Cevidanes, Lucia Helena Soares; Janson, Guilherme; Yatabe, Marília Sayako; Lauris, José Roberto Pereira; Ruellas, Antônio Carlos (Clinical Oral Investigations, 2021)