Contamination of esthetic orthodontic ligatures: an in vivo study - Morelli, R.; Saraiva, Maria da Conceição Pereira; Romano, Fábio Lourenço; Stuani, Maria Bernadete Sasso; Ferreira, José Tarcisio Lima; Nelson Filho, Paulo; Matsumoto, Mirian Aiko Nakane (General Session and Exibition of the IADR, 2017)