ArrudaA.C.L. de, HenriquesF.O., SeriqueA.V.C., Aleixo NogueiraP., RibeiroS.M.M., de MirandaD.K.B., MenezesS.A.F. de, FonsecaR.R. de S., SilvaF. de J.R. and NogueiraJ.S.E. 2020. Use of modified “w” arch in posterior crossbite treatment simultaneously with anterior space maintenance. Electronic Journal Collection Health. 58 (Aug. 2020), e4005. DOI:https://doi.org/10.25248/reas.e4005.2020.