Highly concentrated EDTA gel improves cleaning efficiency of root canal preparation in vitro.

Clinical Oral Investigations
P PutzerH Günay

Abstract

Debris and smear layer, as a product of mechanical root canal instrumentation, reduce the effectiveness of pharmacological substances to prevent post-treatment diseases and impair direct contact of filling materials with a clean dentinal surface. The aim of this in vitro study was to investigate the presence and localization of debris and smear layer via scanning electron microscope analysis after standardized root canal preparation with different chelating agents. Dentin surfaces received treatment with: (1) 15% ethylenediaminetetraacetic acid (EDTA), (2) 18.6% EDTA (3) and 24% EDTA or without any demineralizing chemicals as control. Forty vertically split human premolars were sputtered and divided into coronal, middle, and apical sections, followed by a randomized, blinded score evaluation using five scores. Pairwise comparisons of all treatment groups against a control group have been performed by Mann-Whitney U test and the Kruskal-Wallis test. Debris grades showed no significant difference between the three regions of the root canals, except for 18.6% EDTA in the central third. Smear layer and smear plug removal was concentration-dependent. Removal of the smear layer in the three areas showed that there was a statistically...Continue Reading

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Citations

Jan 23, 2010·Clinical Oral Investigations·Maria DimitrouliAnne-Katrin Lührs
Jun 8, 2011·Clinical Oral Investigations·Maria DimitrouliAnne-Katrin Lührs
Feb 16, 2011·Clinical Oral Implants Research·Victoria NtroukaFridus van der Weijden
May 26, 2009·Journal of Applied Oral Science : Revista FOB·Elaine Vianna Freitas FachinLiliane Inês Sachet Massoni
Oct 24, 2018·Microscopy Research and Technique·Gülşah UsluKoray Yılmaz
Oct 31, 2017·Microscopy Research and Technique·Rayana Longo Bighetti TrevisanIzabel Cristina Froner

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