氧化鋯陶瓷和鈦合金的表面粗糙度與細(xì)菌粘附的比較研究.pdf

1、山西醫(yī)科大學(xué)碩士學(xué)位論文氧化鋯陶瓷和鈦合金的表面粗糙度與細(xì)菌粘附的比較研究姓名：金恩龍申請學(xué)位級別：碩士專業(yè)：口腔臨床醫(yī)學(xué)指導(dǎo)教師：焦艷軍20070508山西醫(yī)科大學(xué)磺士學(xué)位論文TheComparativeStudyOilboththeSurfaceRoughnessandtheAdhesionofStreptococcusMutansonbothZirconiaceramicandTitaniumahoyAbstractWhenden

2、talrestorativematerialsareputintomouthasavariantsubstance，somechangesinmicroecologicalconditionsascariesorperiodontitismaytakeplaceinthemouthAdherenceandcolonizationofmicrobeondentalrestorativematerialsarefirstandvitalst

3、epsforfurthcraggravationTheprocessofadhesioniscomplexandisaffectedbymanyfactors，suchasmaterialsused，surfacecharacters，akindofbacteria，acquiredpellicleandcomponentsofsalivaPurpose：Thisstudyistomensurethesurfaceroughnessof

4、thesamplesaftertherespectivesurfacefinishedandtheirabilityofretentionofStreptococcusmutans。Inadditionthisstudyistocomparethedifferenceofsurfacepropertiesbetweentwoprosthodonticmaterialsinordertoprovidethetheoryforclinica

5、lapplicationMethods：Twelvespecimensofeachmaterialarefabrieatedaccordingtothemanufactures’directionsanddividedintofivegroupsEachsamplegroupadoptsrespectiveclinicallyandcommonlyusedsurfacetreatmentmethodgrinding，polishinga

6、ndglazingInitialroughnessmeasurements(Rameasuredin“m)arcmadebytheusageofaprofilometerThenthespecimensareseparatelyplacedintoliquidculturemediuminwhichtherearestreptococcusmutans(ATCC25175)andincubatedintheconditionofdiff

7、erentvibratingspeedforlhunder37’CThen，theyarephotographedandtheadheredbacteriaiscounted，whichisstainedbyacridineorangeandisexaminedbyfluorescencemicroscopyAllsurfacetreatmentsareanalyzedwithSEMResults：(1)Thereisnosignifi

8、cantlydifferenceofroughnessvaluesbetweengroupAandgroupBTheroughnessofsamplesingroupCarcsignificantlyrougherthanthatingroupAandBThereisnosignificantdifferenceofthecelladhesion011porcelainsurfacebetweentheyaregtazedandpoli

9、shedbutmorebacteriaadheredontheporcelainsurfaceingroupCSEMresultsshowsimilarsmoothsurfaceforgroupAandgroupB，andpolishingtreatmenthassomefmecracks，andgrindingtreatmenthassomeroughcracks(2)Thereisn0significantlydifferenceo

10、froughnessvaluesbetweengroupAandgroupDThereisnosignificantlydifferenceofthecelladhesiononthesurfacebetweengroupAandgroupDSEMresultsshowsimilarsmoothsurfaceforshowedtwogroups(3)Thereisnosignificantlydifferenceofroughnessv

11、aluesbetweengroupBandgroupEThereissignificantdifferenceofthecelladhesiononthesurfacebetweengroupBandgroupE。morebacteriaadheredonthesurfaceingroupEpolishingtreatmentofceramichassometmecracks，andpolishingtreatmentofTitaniu