The Effect of the Conservative versus the Traditional Access Preparation on Nickel Titanium Rotary Files
Fakhr, M., Sabet, N. (2023). The Effect of the Conservative versus the Traditional Access Preparation on Nickel Titanium Rotary Files. EKB Journal Management System, 5(2), 405-411. doi: 10.21608/adjc.2023.185889.1227
Mohamed Fakhr; Nihal Ezzat Sabet. "The Effect of the Conservative versus the Traditional Access Preparation on Nickel Titanium Rotary Files". EKB Journal Management System, 5, 2, 2023, 405-411. doi: 10.21608/adjc.2023.185889.1227
Fakhr, M., Sabet, N. (2023). 'The Effect of the Conservative versus the Traditional Access Preparation on Nickel Titanium Rotary Files', EKB Journal Management System, 5(2), pp. 405-411. doi: 10.21608/adjc.2023.185889.1227
Fakhr, M., Sabet, N. The Effect of the Conservative versus the Traditional Access Preparation on Nickel Titanium Rotary Files. EKB Journal Management System, 2023; 5(2): 405-411. doi: 10.21608/adjc.2023.185889.1227

The Effect of the Conservative versus the Traditional Access Preparation on Nickel Titanium Rotary Files

Advanced Dental Journal
Volume 5, Issue 2, April 2023, Page 405-411  XML PDF (462.08 K)
Document Type: Original Article
DOI: 10.21608/adjc.2023.185889.1227
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Authors
Mohamed Fakhr email orcid 1; Nihal Ezzat Sabetorcid 2
1Endodontic Department, Faculty of Oral and Dental Medicine, Misr International University, Cairo, Egypt.
2Department of Endodontics, Cairo University, Cairo, Egypt
Abstract
Introduction:
To decrease the amount of tooth structure loss a conservative access cavity (CAC) preparation was proposed where preserving peri-cervical dentin (PCD) would achieve that goal. The aim of this study was to evaluate the effect of the conservative access cavity on the surface changes of controlled memory Nickel titanium rotary files in comparison to the traditional access cavity.
Materials and Methods:
One hundred and forty-four extracted mandibular first molars were randomly divided into two treatment groups (n=72). The Traditional Access cavity (TAC) and the Conservative Access Cavity (CAC) groups. Forty-eight file sets of Endo-Edge X7 rotary files (Henry-Schein, USA) have been used to prepare the mesial canals of all the teeth. The edge 30/0.04 rotary files were scanned by the scanning Electron microscope to assess the surface topographic changes in the files after the preparation of three, six and nine canals.
Results:
The effect of the access cavity preparation design on the surface topographic changes in the edge files were non-significant in all the groups (p>0.05). The surface topographic changes were non-significant after preparation of the three and six canals in both the TAC and CAC groups, however after preparation of nine canals the changes were significant in both the TAC (3.25±0.50) and CAC (4.00±0.82) groups.
Conclusions:
1. As the number of prepared root canals increases, the rotary nickel titanium file defects also increases.

2. Both the TAC and CAC designs had no effect on the defects in the rotary NiTi files.
Keywords
Minimal Invasive Dentistry; Scanning Electron microscope; Surface Topography; Controlled memory Files; Conservative Access Cavity
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