兩種消毒劑對藻酸鹽印模材的消毒效果評價.pdf

1、新疆醫(yī)科大學碩士學位論文兩種消毒劑對藻酸鹽印模材的消毒效果評價姓名：王鋒申請學位級別：碩士專業(yè)：口腔臨床醫(yī)學指導教師：何惠宇201104新疆醫(yī)科大學碩士學位論文新疆醫(yī)科大學碩士學位論文2EffectassessmentofdisinfectiontowdisinfectanttoalginateimpressionsPostgraduate:WangfengSupervis:ProfHeHuiyuAbstractObjective:To

2、expleanappropriatemethodofdisinfectionofimpressionsprovideevidencefclinicalapplicationthroughtheuseof2%glutaraldehyde500mgLTrichloisocyanuricacid.Methods:Thepowderofalginatematerialswasdisinfectedinozonizerf2hours.traysd

3、istilledwaterweredisinfectedinautoclaveat12l℃f15min.90alginateimpressionsamplesweresetwithoutbacteria.Cutmedicalsterilemembraneintothesizeofthegap2.02.0cm2itshouldbefixedtopalateofimpressionoftheupperjawwiththepinthensoa

4、kedwithsterileeluatecontainingtheappropriateneutralizeracottonswabwithinaspecifiedareaitshouldbeappliedevenlyonverticalhizontallinesfromtowtimessubsequentlyturnthecottonswabthencutoffthepartwhichtouchedbyhputitintosteril

5、e10mlneutralizerwiththecrespondinginelutionimmediatlytestthespecimens.Finallythesamplingtubeoscillationinthe20sonavtexmixerfcefulrapping80timesdrawing1.0mlthesamplethroughasterilizedstraweachsamplewasinoculatedwithaplate

6、theplateisaddedto45℃48℃meltednutrientagar1518mlshakewellwhilepouringuntiltheagarsolidifiedculturetheplatecanbeputedinincubatat37℃f48hcountcoloniesevaluatedisinfectiveeffectsaccdingtothenumberofcolonies.Results:Thebacteri

7、awerereducedfrom92.84%To97.12%onthesurfaceofimpressionsthroughrinsingimpression.Themeanreductiveratiowas95.15%disinfectanteffectionofbacteriacanbe100%with2%glutaraldehydef5min.99.41%bacteriacanbekilledwith500mgLtrichlois

8、ocyanuricacidafter5min100%bacteriacanbekilledafter10min.Conclusion:Theattachmentbacteriacouldberemovedpartiallybyrinsingtheimpressionbutthemethodscannotachieveddsinfection.Therefetheimpressionmustbedisinfected.Disinfecta