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1、口腔颌面外科学0102（Oralandmaxillofacialsurgery0102）SecondsectiondisinfectionandsterilizationOralandmaxillofacialsurgeryandotherclinicalgeneralsurgery,muststrictlyfollowtheprincipleofcommonbacteriaandsterile,whichexistsinthehumanbodyandthesurroundingenvironment,thereareoralandmaxill
2、ofacialsinuscavityisahotbedofparasitismandreproductionofbacteria,afterthesurgery,theinfectionismoreopportunity.Thoroughdisinfectionandsterilizationisanimportantmeasuretopreventpostoperativeinfectionandcrossinfectionsoastoensuretheoperationeffectandreduceoperativecomplication
3、s.Disinfectionandsterilizationofoperationroomandsurgicalequipment(1)disinfectionofsurgicalinstrumentsanddressings1.highpressuresteamsterilizerpressuresterilizerhaslowerexhausttypeandprevacuumpressuresterilizertwokinds.Generalequipment,cloth,gauze,cottonandrubbercanbeused.The
4、sterilizationeffectisreliable,butthepressureandsterilizationtimeofdifferentsubstancesrequiredifferent.2.boilingdisinfectionmethod,thismethodissimple,easytouse,suitableforheat-resistant,temperatureresistantgoods,butcanmakethesharpnessofthebladedamage.Disinfectiontimestartsfro
5、mboilingwater.GenerallyneedL5~20minutes.Forpatientswithhepatitiscontaminatedinstrumentsandarticles,shouldboil30minutes.Whenadding2%sodiumbicarbonate,theboilingpointis105degrees,whichcanshortenthedisinfectiontime,andtheeffectisbetter(metalinstrumentscanbeboiledfor5minutestome
6、etthesterilizationrequirements),andcanbeantirust.3.dryheatsterilizationusingelectricorinfraredovenbakingheatsterilization.Itissuitableforglass,ceramicandotherinstruments,andshouldnotbesterilizedbyhigh-pressuresteamgelatinsponge,Vaseline,grease,liquidparaffinandavarietyofpowd
7、erandotheritems.Articlesthatarenotresistanttohightemperature,suchascottonfabrics,syntheticfibers,plasticsandrubberproducts,cannotbesterilizedbythismethod.Thetemperatureandmaintenancetimeofdryheatsterilizationshouldbedeterminedaccordingtotheheatconductionspeed,packingsizeandp
8、lacingconditionofsterilizedarticles.Generally160degreesshouldlast120minutes
