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

作者：Ramos; Marcelle Marie Buso; Gartti Jardim; Ellen Cristina; Gaetti Jardim Junior; Elerson

来源：Journal of Applied Oral Science, 2009, 17(spe): 13-18.

DOI：10.1590/S1678-77572009000700004

• oral cavity
• enteric bacteria
• pcr.

this study evaluated the occurrence of enteric bacteria and pseudomonads resistant to tetracycline and 汕-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 汕-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. 汕-lactamase production was observed in 41.2% of tested microorganisms, while the most commonly found 汕-lactamase genetic determinant was gene blatem. tetracycline resistance was disseminated and a wide scope of tet genes were detected in all studied microbial genus.