Avaliação da atividade antimicrobiana do MTA e cimento portland em cepas de enterococcus faecalis e pseudomonnas aeruginosa
A determinação do perfil antimicrobiano de materiais endodônticos é de grande importância para determinação dos procedi-
mentos odontológicos. O objetivo do presente trabalho foi avaliar o perfil antimicrobiano dos cimentos endodônticos MTA, que
vem constituindo-se um excelente selador e preenchedor especialmente nas perfurações radiculares e de furca e que até então
possuíam um prognóstico bastante desfavorável, e o Cimento Portland, que vem sendo utilizado com eficácia no tratamento da
polpa dentária, frente a cepas de enterococcus faecalis e pseudomonas aeruginosa, bactérias comumente resistentes aos anti-
microbianos atuais e encontradas na maioria dos casos de lesões endodônticas refratárias. No teste antimicrobiano, os cimentos
foram diluídos em água destilada e aplicados em discos de papel de filtro estéreis que foram colocados em placas de Petri ino-
culadas com as bactérias. O teste estatístico utilizado (ANOVA) permitiu inferir que houve uma diferença significante (p<0,05)
entre os controles positivos e os cimentos avaliados. Com base nos resultados obtidos, pode se concluir que nenhum dos cimentos
testados, MTA ou Portland, apresentam atividade antimicrobiana sobre as cepas testadas exigindo, portanto um protocolo de
desinfecção prévio ao se utilizar esses materiais na prática odontológica.
palavras-chave: MTA; cimento Portland; atividade antimicrobiana; enterococcus faecalis; pseudomonas aeruginosas; endo-
dontia; microbiologia.
AbsTRACT
The determination of the antimicrobial profile of endodontic materials are of great importance for the dental procedures esta-
blishment. The aim of this study was to evaluate the profile of antimicrobial sealers MTA, which is an excellent sealer and filler
especially in the root and furcation perforations, which had unfavorable prognosis and Portland cement, which has been used
efectivelly in dental pulp treatment against enterococcus faecalis and pseudomonas aeruginosa that are the resistant bacteria
present in most cases of refractory endodontic infections. In the antimicrobial test, the material was diluted in distilled water and
applied on filter paper discs that were placed in Petri dishes inoculated with bacteria. The ANOVA statistical test allowed us to
infer that there was a statistically significant difference with p <0.05 when comparing positive controls, and cements. After the
The determination of the antimicrobial profile of endodontic materials are of great importance for the dental procedures esta-
blishment. The aim of this study was to evaluate the profile of antimicrobial sealers MTA, which is an excellent sealer and filler
especially in the root and furcation perforations, which had unfavorable prognosis and Portland cement, which has been used
efectivelly in dental pulp treatment against enterococcus faecalis and pseudomonas aeruginosa that are the resistant bacteria
present in most cases of refractory endodontic infections. In the antimicrobial test, the material was diluted in distilled water and
applied on filter paper discs that were placed in Petri dishes inoculated with bacteria. The ANOVA statistical test allowed us to
infer that there was a statistically significant difference with p <0.05 when comparing positive controls, and cements. After the
experiments, we can conclude that none of the sealers, MTA
or Portland, showed antimicrobial activity against the strains
tested, thus requiring a protocol for disinfection prior to using
these materials
Keywords: MTA, Portland cement, antimicrobial activity,
enterococcus faecalis, pseudomonas aeruginosa, endodon-
tics, microbiology;
or Portland, showed antimicrobial activity against the strains
tested, thus requiring a protocol for disinfection prior to using
these materials
Keywords: MTA, Portland cement, antimicrobial activity,
enterococcus faecalis, pseudomonas aeruginosa, endodon-
tics, microbiology;