Accession Number : AD1013282

Title :   Comparison of Curved Root Canals Prepared with Various Chelating Agents

Descriptive Note : Technical Report

Corporate Author : Uniformed Services University Of The Health Sciences Bethesda United States

Personal Author(s) : Swenson,Kelli

Full Text :

Report Date : 01 Jun 2012

Pagination or Media Count : 11

Abstract : During instrumentation of a root canal, ethylenediaminetetraacetic acid (EDTA) as a chelating agents may be used during cleaning and shaping. EDTA demineralizes dentin and may inadvertently contribute to root canal transportation. The purpose of this study was to evaluate the effect of chelating agents used in moderately curved canals during instrumentation using micro-computed tomography (micro)(CT) and imaging/modeling technology. Methods: Moderately curved mesiobuccal root canals of 18 de-identified maxillary molars were standardized in length and divided into 3 groups (n=6). Initial scans were taken using (micro)(CT) . All canals were instrumented with Profile (DENTSPLY Tulsa Dental, Tulsa, OK) 0.04 taper NiTi rotary instruments using saline, 17% EDTA (Pulpdent Corp., Watertown, MA) or RC-Prep (Premier Dental, Philadelphia, PA, USA). After instrumentation, lengths were re-measured and all the teeth were re-scanned. Using computer software, 3-dimensional models were created from the pre and post-instrumentation scans. Models were compared for changes in volume and transportation. Results: There was no statistically significant difference between the groups for any of the variables evaluated: working length (p=0.562), volume (p=0.079) and transportation (p=0.167 to 0.776). Conclusion: Under the conditions of this study, the use of chelating agents during instrumentation did not affect the size or position of the root canals.

Descriptors :   ROOT CANAL , dentistry , DENTAL EQUIPMENT , ORAL Surgery , teeth , CHELATION , XRAY COMPUTED TOMOGRAPHY , statistical analysis

Distribution Statement : APPROVED FOR PUBLIC RELEASE