Low-level laser therapy for pain caused by placement of the first orthodontic archwire: A randomized clinical trial - Tortamano, André; Lenzi, Daniele Calovini; Haddad, Ana Cristina Soares Santos; Bottino, Marco Cicero; Dominguez, Gladys Cristina; Vigorito, Julio Wilson (American Journal of Orthodontics and Dentofacial Orthopedics, 2009)