Force level of small diameter nickel-titanium orthodontic wires ligated with different methods - Higa, Rodrigo Hitoshi; Henriques, José Fernando Castanha; Janson, Guilherme; Matias, Murilo; Freitas, Karina Maria Salvatore de; Henriques, Fernanda Pinelli; Francisconi, Manoela Fávaro (Progress in Orthodontics, 2017)