Effectiveness in the removal of endotoxins and microbiological profile in primary endodontic infections using 3 different instrumentation systems: a randomized clinical study - Cavalli, Daiana; Toia, Cássia Cestari; Flores Orozco, Esteban Isai; Khoury, Rayana Duarte; Cardoso, Flávia Goulart da Rosa; Alves, Marcelo Corrêa; Carvalho, Cláudio Antônio Talge; Valera, Marcia Carneiro (Journal of Endodontics, 2017)