2006
DOI: 10.1590/s1806-83242006000200006
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Effect of rotary instrumentation and of the association of calcium hydroxide and chlorhexidine on the antisepsis of the root canal system in dogs

Abstract: ABSTRACT:This study aimed at evaluating the antisepsis of the root canal system (RCS) and periapical region (PR) provided by rotary instrumentation associated with chlorhexidine + calcium hydroxide as intracanal medicament. Chronic periapical lesions were induced in 26 pre-molar roots in two dogs. After microbiological sampling, automatic instrumentation using the Profile system and irrigation with 5.25% sodium hypochlorite solution, with a final rinse of 14.3% EDTA followed by profuse irrigation with physiolo… Show more

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Cited by 21 publications
(35 citation statements)
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“…Various biological properties have been attributed to this substance, such as antimicrobial activity, 1 high alkalinity, 2 inhibition of tooth resorption, 3 and tissue-dissolving ability. 4 To be effective, it has to be adequately placed and condensed in the root canal space.…”
Section: Introductionmentioning
confidence: 99%
“…Various biological properties have been attributed to this substance, such as antimicrobial activity, 1 high alkalinity, 2 inhibition of tooth resorption, 3 and tissue-dissolving ability. 4 To be effective, it has to be adequately placed and condensed in the root canal space.…”
Section: Introductionmentioning
confidence: 99%
“…Além disto, estas substâncias devem ser capazes de promover a detoxicação da endotoxina bacteriana -LPS (Buck et al, 2001;Silva et al, 2002;Gomes et al, 2009a). Com estes propósitos e também visando a prevenir a reinfecção do sistema de canais radiculares, diferentes substâncias antimicrobianas têm sido utilizadas como medicação intracanal entre sessões, em dentes com necrose pulpar e lesão periapical (Barbosa et al, 1997;Silva et al, 2002;De Rossi et al, 2005;Leonardo, 2005;Soares et al, 2006a;Kanisavaran, 2008; Mohammadi e Abbott, 2009b). Do ponto de vista clínico, a medicação intracanal ideal para dentes com necrose pulpar e lesão periapical deve apresentar amplo espectro antimicrobiano, tempo de ação suficiente para eliminar bactérias, possuir propriedades físico-químicas que permitam sua difusão através dos túbulos dentinários e ramificações laterais do sistema de canais radiculares e ser biocompatível, a fim de favorecer o reparo e não provocar irritação adicional aos tecidos periapicais .…”
Section: Introductionunclassified
“…Atualmente, o hidróxido de cálcio [Ca(OH) 2 ] é considerado a medicação intracanal de escolha (Siqueira Jr e Lopes, 1999;Almyroudi et al, 2002;Gomes et al, 2002;Carrote, 2004;Soares et al, 2006a;Silva et al, 2008;Kawashima et al, 2009;Gangwar, 2011;Madhubala et al, 2011;Iwaya et al, 2011). O Ca(OH) 2 possui pH alcalino (aproximadamente 12,5 a 12,8), sendo quimicamente classificado como uma base forte.…”
Section: Introductionunclassified
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