Comparison of the Effect of Four Decalcifying Agents Combined with 60°C 3% Sodium Hypochlorite on Smear Layer Removal

Unusual Root Canal Irrigation Solutions

“…Nelson-Filho et al 73 showed that there was no significant difference between EDTA and SmearClear in removing the smear layer from the root canals of primary teeth. On the contrary, Wu et al 74 indicated that the efficacy of 17% EDTA was better than that of SmearClear, while Dunavant et al 75 demonstrated that the efficacy of SmearClear on E. faecalis biofilms was significantly weaker than 1 and 6% NaOCl.…”

Efficacy of Ethylenediamine Tetraacetic Acid and Calcium Hydroxide in the Removal of Root Canal Filling During Retreatment

“…13 Moreover, the studies have reported the increase effect of Ca(OH)2 medication followed by sodium hypochlorite irrigation on tissue-dissolving capability 14 likewise, the efficacy of chelating agents in the removal of smear layer has also been studied. 15 However, currently available studies indicate the unsatisfactory information about the dissolving capability of EDTA and calcium hydroxide on the root canal filling materials. Because of its high importance and irrevocable effects on infection control and organic tissue dissolution, sodium hypochlorite was preferred to be used as a part of routine endodontic treatment protocol, it was not included as an alternative irrigation solution in the present study.…”

Análise da remoção da smear layer e penetração intratubular do cimento obturador após diferentes protocolos de irrigação - estudo em microscopia eletrônica de varredura e confocal a laser

“…Em virtude desta composição, durante a instrumentação dos canais radiculares (preparo biomecânico) ocorre a produção de um material de estrutura não homogênea, fracamente aderido às paredes, composto por partículas orgânicas e inorgânicas, proteínas coaguladas, tecido pulpar, células sanguíneas, bactérias e fungos denominado smear layer (GULABIVALA et al, 2005;CARON et al, 2010;TZANETAKIS et al, 2010;VIOLICH;CHANDLER, 2010;ADIGUZEL et al, 2011;ÇOBANKARA et al, 2011;PRADO et al, 2011;ABARAJITHAN et al, 2012;SINGH et al, 2014;WU et al, 2012).…”

“…Dentre as diferentes substâncias utilizadas para cumprir este objetivo, o EDTA e o ácido cítrico têm sido amplamente utilizados (PASHLEY et al, 1981;YAMADA et al, 4 4 4 | Introdução 1983;WHITE et al, 1984;MADER 1987;STERRETT et al, 1993;DI LENARDA et al, 2000;SCELZA et al, 2000;SCELZA et al, 2003;MACHADO-SILVEIRO et al, 2004;GARCIA-GODOY et al, 2005;DOTTO et al, 2007;DE-DEUS et al, 2008;KHEDMAT;SHOKOUHINEJAD, 2008;PÉREZ-HEREDIA et al, 2008;REIS et al, 2008;MANCINI et al, 2009;PRADO et al, 2011;KARA TUNCER;TUNCER, 2012;WU et al, 2012;ARSLAN et al, 2013;NAKAMURA et al, 2013;YEOUNG et al, 2013;SINGH et al, 2014). Ambos atuam reduzindo drasticamente a quantidade de íons cálcio alterando a permeabilidade do complexo dentinário (HÜLSMANN et al, 2003;VIOLICH;CHANDLER, 2010;NAKAMURA et al, 2013).…”

“…No entanto, a literatura endodôntica tem mostrado ao longo da história a ineficiência destas e outras substâncias quelantes para a total remoção da smear layer gerada durante o processo de instrumentação (GOLDMAN et al, 1981;MACHADO-SILVEIRO et al, 2004;DE-DEUS et al, 2008;KHEDMAT;SHOKOUHINEJAD, 2008;PRADO et al, 2011;WU et al, 2012). Consequentemente, algumas associações foram propostas (WAYMAN et al, 1979;GOLDMAN et al, 1982;YAMADA et al, 1983;WHITE et al, 1984;CENGIZ et al, 1990;ABBOTT et al, 1991;STEWART, 1998;TATSUTA et al, 1999;NIU et al, 2002;VILLEGAS et al, 2002;GRAWEHR et al, 2003;DOTTO et al, 2007;CARON et al, 2010;ROSSI-FEDELE, et al, 2012;NAKAMURA et al, 2013;WANG at al., 2013).…”