The upper airway volume effects produced by Hyrax, Hybrid-Hyrax, and Keles keyless expanders: a single-centre randomized controlled trial.
Gordon C CheungOyku DalciSimone MustacSpyridon N PapageorgiouShanya HammondM Ali DarendelilerAlexandra K PapadopoulouPublished in: European journal of orthodontics (2021)
Australian and New Zealand Clinical Trial Registry (ACTRN12617001136392).