氧化鋯陶瓷和鈦合金的表面粗糙度與細菌粘附的比較研究.pdf

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