Root Canal Shaping by Continuous or Reciprocating Rotation: the ProTaper System versus the Endo-Eze Tilos System
Dental News Volume XXII, Number II, June, 2015 by Dr. Chems Belkhir, Dr. Rim Naifar, Dr. Jihed Ben Ammar, Dr. Sana Bagga, Dr. Mohammed Semir Belkhir Abstract Introduction The aim of this in vitro study is to compare between two systems of canal shaping: the ProTaper ® system (used in continuous rotation) and the Tilos ® (used in reciprocating motion), in order to evaluate, after endodontic preparation, the increase in canal surface, the canal centring and the respect of the initial canal shape. Materials and method Thirty human teeth (first and second mandibular molars) with straight or slightly curved mature roots were sectioned 3mm below the neck, the access cavities established and the working length of the mesial roots measured. Each tooth was slipped into a transparent block of resin. Each block was perforated, one on the mesial and one on the distal part of the tooth; with a drill and then sectioned withi...