TY - JOUR
T1 - A comparative study of smear layer removal using different salts of EDTA
AU - O'Connell, Michael S.
AU - Morgan, Leslie A.
AU - Beeler, William J.
AU - Baumgartner, J. Craig
N1 - Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2000/12
Y1 - 2000/12
N2 - Three solutions of EDTA-a 15% concentration of the alkaline salt, a 15% concentration of the acid salt, and a 25% concentration of the alkaline salt - were evaluated for smear layer removal in root canal systems. All solutions were adjusted to pH 7.1 using either NaOH or HCl. When the EDTA solutions were alternately used for root canal irrigation with 5.25% NaOCl, they completely removed the smear layer in the middle and coronal thirds of canal preparations, but were less effective in the apical third. None of the EDTA solutions by themselves were effective at completely removing the smear layer at any level. The alkaline tetrasodium salt, pH adjusted with HCl, is more cost effective and performed equally as well as the more commonly used disodium salt.
AB - Three solutions of EDTA-a 15% concentration of the alkaline salt, a 15% concentration of the acid salt, and a 25% concentration of the alkaline salt - were evaluated for smear layer removal in root canal systems. All solutions were adjusted to pH 7.1 using either NaOH or HCl. When the EDTA solutions were alternately used for root canal irrigation with 5.25% NaOCl, they completely removed the smear layer in the middle and coronal thirds of canal preparations, but were less effective in the apical third. None of the EDTA solutions by themselves were effective at completely removing the smear layer at any level. The alkaline tetrasodium salt, pH adjusted with HCl, is more cost effective and performed equally as well as the more commonly used disodium salt.
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U2 - 10.1097/00004770-200012000-00019
DO - 10.1097/00004770-200012000-00019
M3 - Article
C2 - 11471645
AN - SCOPUS:0034570840
SN - 0099-2399
VL - 26
SP - 739
EP - 743
JO - Journal of endodontics
JF - Journal of endodontics
IS - 12
ER -