A comparative study of the effect of the intrusion arch and straight wire mechanics on incisor root resorption: a randomized, controlled trial - Almeida, Marcio Rodrigues; Marçal, Aline Siqueira Butzke; Fernandes, Thais Maria Freire; Vasconcelos, Juliana Brito; Almeida, Renato Rodrigues de; Nanda, Ravindra (The Angle Orthodontist, 2018)