Effects of increased apical enlargement on the amount of unprepared areas and coronal dentine removal: a micro-computed tomography study.
A R PérezFlávio Rodrigues Ferreira AlvesM F Marceliano-AlvesJ C ProvenzanoL S GonçalvesAline de Almeida NevesJ F SiqueiraPublished in: International endodontic journal (2017)
Apical preparations up to 4 instruments larger than the first one to bind at the WL caused a significant progressive reduction in the unprepared canal area.