ENDODONTIC SYSTEMS AND METHODS FOR THE ANATOMICAL, SECTIONAL AND PROGRESSIVE CORONO-APICAL PREPARATION OF ROOT CANALS WITH DEDICATED STAINLESS STEEL INSTRUMENTS AND DEDICATED NICKEL/TITANIUM INSTRUMENTS

摘要

A root canal is sequentially cleaned in sections from the crown to the apex by dividing it into three sections including an operative coronal portion, an operative middle portion and an apical portion. The pulp material is then sequentially removed from the portion of the root canal above the apical portion of the root canal with a set of instruments having stainless steel files. The apical portion is then cleaned with another set of instruments that have nickel/titanium files. An optional set of instruments can also be used to improve the access into the apical portion such that irrigants can be delivered to the apical portion.