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Comparative evaluation of antimicrobial action of MTA, calcium hydroxide and Portland cement
Ribeiro, Caroline Sousa; Kuteken, Fernanda Akemi; Hirata Júnior, Raphael; Scelza, Miriam F. Zaccaro.
  • Ribeiro, Caroline Sousa; Fluminense Federal University. Department of Endodontics. Niterói. BR
  • Kuteken, Fernanda Akemi; Fluminense Federal University. Department of Endodontics. Niterói. BR
  • Hirata Júnior, Raphael; State University of Rio de Janeiro. Department of Microbiology. Rio de Janeiro. BR
  • Scelza, Miriam F. Zaccaro; Fluminense Federal University. Department of Endodontics. Niterói. BR
J. appl. oral sci ; 14(5): 330-333, Sept.-Oct. 2006. tab
Article in English | LILACS, BBO | ID: lil-447813
ABSTRACT
The present study aimed to evaluate and compare the antimicrobial effect of MTA Dentsply, MTA Angelus, Calcium Hydroxide and Portland cement. Four reference bacterial strains were used Pseudomonas aeruginosa, Escherichia coli, Bacteroides fragilis, and Enterococcus faecalis. Plates containing Mueller-Hinton agar supplemented with 5 percent sheep blood, hemin, and menadione were inoculated with the bacterial suspensions. Subsequently, wells were prepared and immediately filled with materials and incubated at 37°C for 48 hours under anaerobic conditions, except P. aeruginosa. The diameters of inhibition zones were measured, and data analyzed using ANOVA and the Tukey test with 1 percent level of significance. MTA Dentsply, MTA Angelus and Portland cement inhibited the growth of P. aeruginosa. Calcium Hydroxide was effective against P. aeruginosa and B. fragillis. Under anaerobic conditions, which may hamper the formation of reactive oxygen species, the materials failed to inhibit E. faecalis, and E. coli.
RESUMO
O objetivo do presente trabalho foi avaliar e comparar o efeito antimicrobiano do MTA Dentsply, MTA Angelus, hidróxido de cálcio e cimento Portland sobre quatro cepas bacterianas Pseudomonas aeruginosa, Escherichia coli, Bacteroides fragilis, e Enterococcus faecalis. Placas contendo agar Muller-Hinton suplementadas com 5 por cento de sangue de carneiro, hemina e menadiona foram inoculadas com as suspensões bacterianas. Poços foram confeccionados com auxílio de perfuradores e imediatamente preenchidos com os materiais, e incubados a 37°C por 48 horas em atmosfera de anaerobiose, exceto P. aeruginosa. O diâmetro dos halos de inibição foi medido e os dados analisados usando o teste estatístico ANOVA e o de Tukey com nível de significância de 1 por cento. O MTA Dentsply, MTA Angelus e Cimento Portland inibiram o crescimento da P.aeruginosa. O hidróxido de cálcio foi efetivo contra P. aeruginosa e B. fragillis. Sob atmosfera de anaerobiose, condição que pode impedir a formação de espécies reativas do oxigênio, nenhum dos materiais foi capaz de exercer efeitos sobre E. faecalis e E. coli.
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: In Vitro Techniques / Calcium Hydroxide / Dental Cements / Products with Antimicrobial Action Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2006 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: Fluminense Federal University/BR / State University of Rio de Janeiro/BR

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Full text: Available Index: LILACS (Americas) Main subject: In Vitro Techniques / Calcium Hydroxide / Dental Cements / Products with Antimicrobial Action Language: English Journal: J. appl. oral sci Journal subject: Dentistry Year: 2006 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: Fluminense Federal University/BR / State University of Rio de Janeiro/BR