publication . Article . 2013

Comparison of the Effect of Canal Preparation by Step Back Technique Using Hand Instruments and Gates Glidden Drills with ProTaper Universal Rotary System on the Root Resistance to Vertical Fracture

A Abbaszadegan; Z Sadat Aleyasin; M Sedigh Shamsi; Sh Shahriari;
Open Access Persian
  • Published: 01 Jun 2013 Journal: Majallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd (issn: 2228-5741, eissn: 2228-5733, Copyright policy)
  • Publisher: Shahid Sadoughi University of Medical Sciences
Introduction: Cleaning and shaping of the root canal system with an efficient and safe technique are the major goals of root canal treatment. The aim of this study was to compare the conventional root canal preparation technique by hand instruments and Gates Glidden drills with ProTaper Universal Rotary system on the root susceptibility to vertical fracture. Methods: Thirty extracted human mandibular premolars were randomly assigned to two groups. In group I, apical preparation was performed with k-files up to #40 utilizing step back technique and coronal flaring was done with Gates Glidden drills. In group II, ProTaper Universal Rotary instruments were used up ...
free text keywords: Hand instrumentation; Gates Glidden drills; ProTaper universal rotary system; Vertical root fracture, Medicine (General), R5-920
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