Adult orthodontic retreatment of severe root resorption by skeletal anchorage: a case report - Moura, Wilana; Ciantelli, Thales Lippi; Bellini-Pereira, Silvio Augusto; Cotrin-Silva, Paula Patrícia; Henriques, José Fernando Castanha; Janson, Guilherme (International Orthodontics, 2020)