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Simula.ed Microbe Remova. a.ound Finger Rings Using Different Ha.d Sa.ita.ion Methods

Interna.iona. Journa. of Ora. Science 2009年第3期1卷 136-142页

作者： archana a. alur Ma.ha.i J. Ra.e Ja.es P. Scheetz Dougla. J. Lorenz La.rence Gettlema. Ba.la.d High School Louisville Kentucky USA School of Medicine University of Louisville Louisville Kentucky USA School of Dentistry University of Louisville Louisville Kentucky USA School of Public Hea.th & Informa.ion Sciences University of Louisville Louisville Kentucky USA

a.m It is our opinion tha. the CDC a.d the WHO ha.e underestima.ed cross-conta.ina.ion under exa.ina.ion gloves in denta. clinics while wea.ing jewelry, such a. finger rings. These a.encies only ＂recommend＂ removing jewelry, a.d only wa.hing ha.ds for 15 seconds with soa. a.d wa.m wa.er before donning gloves. This study exa.ined severa. wa.hing procedures a.d finger rings using simula.ed microbes. Methodology a.gloved robber ha.d ma.ikin wa. ma.e a.d fitted with a.flesh disposa.le vinyl glove. Four fingers were fitted with rings or no ring, dusted with simula.ed microbes, a.d wa.hed with a.scrub brush for 5, 15, a.d 25 seconds under 20℃ a.d 40℃ wa.er a.one, or with liquid ha.d soa.. Light levels （in lux） of fluorescent powder before a.d a.ter wa.hing were mea.ured a.d delta.scores ca.cula.ed for cha.ges in light levels, equiva.ent to effectiveness of ha.d wa.hing procedures. a.full-fa.toria., 3-fa.tor a.a.ysis of va.ia.ce （a.OVa. wa. used to test for differences a.ong levels of the three study fa.tors-time, tempera.ure, a.d soa. use. Tukey＇s post hoc honestly significa.t difference （HSD） test wa. a.plied to significa.t fa.tors to exa.ine pa.r-wise differences between fa.tor levels. Results It wa. found tha. the longer the ha.ds with rings were wa.hed with a.scrub brush under flowing wa.er, the more simula.ed microbes were removed. By 25 seconds, a.l methods were essentia.ly the sa.e. Simula.ed microbes were more difficult to remove from the pa.m compa.ed to the ba.k of the ha.d. The liquid ha.d soa. used in this study wa. more effective with wa.m wa.er tha. cold. When given a.choice of wa.hing with cold wa.er up to 15 seconds, it would be prefera.le not to use soa. to remove simula.ed microbes. Qua.ita.ively, the outer surfa.e of finger rings were more effectively clea.ed tha. the crevice below the ring, a.d the ring with a.stone setting a.pea.ed to a.cumula.e a.d reta.n simula.ed microbes more tha. other rings. Conclusion The most effective trea.ment wa. wa.hing wi

关键词： denta. exa. gloves finger ring jewelry crossconta.ina.ion ha.d hygiene microbes fluorescent powder denta. hea.th ca.e workers

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