Title: Bactericidal action of 308 nm excimer-laser radiation: an in vitro investigation
标题：308 nm激发激光辐射杀菌作用体外试验
Content/内容：
1) The aim of the present study was to investigate the influence of 308 nm excimer-laser radiation on bacterial growth.
本研究旨在调查308 nm激发激光辐射对细菌生长的影响。
2) Six different bacterial strains (Staphylococcus aureus, Escherichia coli, Streptococcus faecalis, Lactococcis lactis, Salmonella typhimurium, and Deinococcus radiodurans) were exposed in vitro to various doses and energy densities of laser radiation.
6种不同菌株（金葡菌、大肠杆菌、粪链球菌、乳酸杆菌、伤寒沙门氏菌与耐放射恐象枉菌）体外暴露在不同剂量与能量密度的激光辐射中。
3) To exclude bacterial killing by supraphysiological heating, the temperature change in the samples during irradiation was measured.
为了排除超生理加热杀菌作用，放射期间样本的温度改变予以测定。
4) Extended antimicrobial effects of XeCl excimer-laser radiation depending on the time of radiation, the energy density of the laser beam, and the irradiated bacterial strain were observed.
观察到XeCl激发激光放射引起的抗菌作用延长取决于激光束的辐射时间、能量密度与辐射菌株。
5) Reduction of bacterial growth is independent of temperature and not linked to any ablative tissue removal.
细菌生长的减慢与温度无关，与组织去除也不相关。
6) In almost all cases, a 99.9% reduction of bacteria was reached by total radiation times<100 ms.
几乎在所有的病例中，总放射次数<100ms细菌减少均可达到99.9%。
7) The proven antimicrobial effects of 308 nm excimer-laser radiation may be of significant clinical importance in endodontics and periodontology in the future.
已证实的308 nm激发激光辐射的抗菌作用将对牙髓病与牙周病具有重要的临床意义。
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