Benefits of using a Trainer T4K® myofunctional appliance after rapid palatal expansion: a prospective study on thirteen patientsC. Boucher, M. Charezinski, A. Balon-Perin, F. Janssens, N. Vanmuylder and R. GlineurJ Dentofacial Anom Orthod, 11 1 (2008) 30-44DOI: https://doi.org/10.1051/odfen/20084210037