Evaluation of antimicrobial effectiveness and dentine mechanical properties after use of chemical and natural auxiliary irrigants

Doglas Cecchin; Ana Paula Farina; Matheus Albino Souza; Lourenço Luís Albarello; Alicia Pamela Schneider; Cristina Mattos Pimenta Vidal; Ana Karina Bedran-Russo

doi:10.1016/j.jdent.2015.03.013

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Evaluation of antimicrobial effectiveness and dentine mechanical properties after use of chemical and natural auxiliary irrigants

Journal article

Peer reviewed

Evaluation of antimicrobial effectiveness and dentine mechanical properties after use of chemical and natural auxiliary irrigants

Doglas Cecchin, Ana Paula Farina, Matheus Albino Souza, Lourenço Luís Albarello, Alicia Pamela Schneider, Cristina Mattos Pimenta Vidal and Ana Karina Bedran-Russo

Journal of dentistry, Vol.43(6), pp.695-702

06/2015

DOI: 10.1016/j.jdent.2015.03.013

PMID: 25863158

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Abstract

To evaluate the effect of GSE, NaOCl, CHX and QMix as an antimicrobial agents against Enterococcus faecalis and their influence on flexural and ultimate tensile strength of root canal dentine. Root canals were divided into five groups (n=10) according to the substances used: 2.5% NaOCl, 2% CHX, 6.5% GSE, Qmix and control group (distilled water) (DW). Final irrigation was done with 17% EDTA in all groups, except when DW was used. The number of colony-forming units was used to evaluate the antimicrobial activity. Dentine beams were used to assess the flexural strength after treatment with substances as described before (n=10). The UTS was evaluated after the treatment of root dentine hourglass shape sections with the same substances (n=30). The lowest bacteria contamination was observed for CHX and GSE, while NaOCl and QMix showed an intermediate antimicrobial activity (p>0.05). NaOCl and QMix significantly reduced the mechanical properties of dentine (flexural strength and UTS) (p<0.05) and no statistical difference was found among CHX, GSE and DW (p>0.05). CHX and GSE were more effective than NaOCl and QMix against E. faecalis. Furthermore, they did not harm dentine mechanical properties as observed for NaOCl and QMix. The use of GSE can be recommended for endodontic procedures since it has good antimicrobial activity and does not interfere in the mechanical properties of dentine; similarly to CHX.

Ultimate tensile strength

Disinfection

Endodontic irrigation

Flexural strength

Details

Title: Subtitle: Evaluation of antimicrobial effectiveness and dentine mechanical properties after use of chemical and natural auxiliary irrigants
Creators: Doglas Cecchin - Department of Restorative Dentistry, Dental School of Universidade de Passo Fundo, Passo Fundo, RS, Brazil
Ana Paula Farina - Department of Restorative Dentistry, Dental School of Universidade de Passo Fundo, Passo Fundo, RS, Brazil
Matheus Albino Souza - Department of Restorative Dentistry, Dental School of Universidade de Passo Fundo, Passo Fundo, RS, Brazil
Lourenço Luís Albarello - Department of Restorative Dentistry, Dental School of Universidade de Passo Fundo, Passo Fundo, RS, Brazil
Alicia Pamela Schneider - Department of Restorative Dentistry, Dental School of Universidade de Passo Fundo, Passo Fundo, RS, Brazil
Cristina Mattos Pimenta Vidal - Department of Restorative Dentistry, Dental School of Universidade de Passo Fundo, Passo Fundo, RS, Brazil
Ana Karina Bedran-Russo - Department of Restorative Dentistry, College of Dentistry, University of Illinois at Chicago, Chicago, IL, USA
Resource Type: Journal article
Publication Details: Journal of dentistry, Vol.43(6), pp.695-702
DOI: 10.1016/j.jdent.2015.03.013
PMID: 25863158
NLM abbreviation: J Dent
ISSN: 0300-5712
eISSN: 1879-176X
Publisher: Elsevier Ltd
Grant note: DOI: 10.13039/501100002322, name: CAPES, award: BEX 17910/12-9
Language: English
Date published: 06/2015
Academic Unit: Operative Dentistry
Record Identifier: 9984066093102771

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