Resistance to tetracycline and β-lactams and distribution of resistance markers in enteric microorganisms and pseudomonads isolated from the oral cavity

Authors

  • Marcelle Marie Buso Ramos São Paulo State University; School of Dentistry of Araçatuba; Department of Pathology and Clinical Propedeutics
  • Ellen Cristina Gartti-Jardim São Paulo State University; School of Dentistry of Araçatuba; Department of Pathology and Clinical Propedeutics
  • Elerson Gaetti-Jardim Junior São Paulo State University; School of Dentistry of Araçatuba; Department of Pathology and Clinical Propedeutics

DOI:

https://doi.org/10.1590/S1678-77572009000700004

Keywords:

Oral cavity, Enteric bacteria, PCR

Abstract

This study evaluated the occurrence of enteric bacteria and pseudomonads resistant to tetracycline and β-lactams in the oral cavity of patients exhibiting gingivitis (n=89), periodontitis (n=79), periodontally healthy (n=50) and wearing complete dentures (n=41). Microbial identification and presence of resistance markers associated with the production of β-lactamases and tetracycline resistance were performed by using biochemical tests and PCR. Susceptibility tests were carried out in 201 isolates of enteric cocci and rods. Resistance to ampicillin, amoxicillin/clavulanic acid, imipenem, meropenem and tetracycline was detected in 57.4%, 34.6%, 2.4%, 1.9% and 36.5% of the isolates, respectively. β-lactamase production was observed in 41.2% of tested microorganisms, while the most commonly found β-lactamase genetic determinant was gene blaTEM. Tetracycline resistance was disseminated and a wide scope of tet genes were detected in all studied microbial genus.

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Published

2009-01-01

Issue

Section

nd

How to Cite

Resistance to tetracycline and β-lactams and distribution of resistance markers in enteric microorganisms and pseudomonads isolated from the oral cavity . (2009). Journal of Applied Oral Science, 17(spe), 13-18. https://doi.org/10.1590/S1678-77572009000700004