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Al-Moghrabi, Dalya; Johal, Ama; O'Rourke, Niamh; Donos, Nikolaos; Pandis, Nikolaos; Gonzales-Marin, Cecilia; Fleming, Padhraig S (2018). Effects of fixed vs removable orthodontic retainers on stability and periodontal health: 4-year follow-up of a randomized controlled trial. American journal of orthodontics and dentofacial orthopedics, 154(2), 167-174.e1. Elsevier 10.1016/j.ajodo.2018.01.007
