牙科设备用水中[具体细菌名称]和[具体细菌名称]的含量及抗生素耐药性：一项案例研究。 （注：原文中两个“and”之间应补充具体细菌名称，不然句子表意不完整）
Dental unit water content and antibiotic resistance of and species: a case study.
作者信息
Tesauro M, Consonni M, Grappasonni I, Lodi G, Mattina R
机构信息
Department of Biomedical, Surgical and Dental Sciences, Laboratory of Environmental Hygiene, Coordinating Research Centres Episomi University of Milan, University of Milan, Milan, Italy.
School of Medicinal and Health Products Sciences, University of Camerino, Camerino, Italy.
出版信息
J Oral Microbiol. 2022 Aug 23;14(1):2107316. doi: 10.1080/20002297.2022.2107316. eCollection 2022.
BACKGROUND
Many studies consider the contamination of dental unit waterlines (DUWLs), but few of them have studied the possible presence of antibiotic resistant in the DUWLs.
AIMS
Investigation of the presence of and 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.
RESULTS
Dental units were contaminated by with loads of 2-1,000 CFU/L and were mainly located on the mezzanine floor, with a range of 46-54%, while spp. were primarily found on the first and second floors, ranging from 50 to 91%. was antibiotic resistant in 30% of the strains tested, and spp. in 31.8% . Cold water from controls was also contaminated by these microorganisms.
CONCLUSION
Monitoring antibiotic resistance in the water and adopting disinfection procedures on DUs are suggested within the Water Safety Plan.
背景
许多研究关注牙科单位水线（DUWLs）的污染情况，但其中很少有研究探讨DUWLs中可能存在的抗生素耐药性。
目的
调查意大利米兰一家公共牙科诊所的DUWLs中 和 菌属菌株的存在情况，并评估它们对六种抗生素（头孢他啶、奈替米星、哌拉西林/他唑巴坦、美罗培南、左氧氟沙星、硫酸多粘菌素）的耐药性。
结果
牙科单位被 污染，负荷量为2 - 1000 CFU/L，主要位于夹层，占比46 - 54%，而 菌属主要在一楼和二楼被发现，占比50%至91%。在测试的菌株中，30%的 具有抗生素耐药性， 菌属的这一比例为31.8%。对照的冷水也被这些微生物污染。
结论
建议在水安全计划中监测水中的抗生素耐药性，并对牙科单位采取消毒程序。
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