{Reference Type}: Journal Article
{Title}: Dental unit water content and antibiotic resistance of Pseudomonas aeruginosa and Pseudomonas species: a case study.
{Author}: Tesauro M;Consonni M;Grappasonni I;Lodi G;Mattina R;Tesauro M;Consonni M;Grappasonni I;Lodi G;Mattina R;
{Journal}: J Oral Microbiol
{Volume}: 14
{Issue}: 1
{Year}: 2022
{Factor}: 5.833
{DOI}: 10.1080/20002297.2022.2107316
{Abstract}: <B>UNASSIGNED: </B>Many studies consider the contamination of dental unit waterlines (DUWLs), but few of them have studied the possible presence of antibiotic resistant Pseudomonas aeruginosa in the DUWLs.<BR><B>UNASSIGNED: </B>Investigation of the presence of P. aeruginosa and Pseudomonas spp. strains in DUWLs and evaluation of their resistance to six antibiotics (ceftazidime, netilmicin, piperacillin/tazobactam, meropenem, levofloxacin, colistin sulfate) at a public dental clinic in Milan, Italy.<BR><B>UNASSIGNED: </B>Dental units were contaminated by P. aeruginosa with loads of 2-1,000 CFU/L and were mainly located on the mezzanine floor, with a range of 46-54%, while Pseudomonas spp. were primarily found on the first and second floors, ranging from 50 to 91%. P. aeruginosa was antibiotic resistant in 30% of the strains tested, andPseudomonas spp. in 31.8% . Cold water from controls was also contaminated by these microorganisms.<BR><B>UNASSIGNED: </B>Monitoring antibiotic resistance in the water and adopting disinfection procedures on DUs are suggested within the Water Safety Plan.