第1題Extrinsicpigmentscanbederivedfrom().AsmokingtobaccoproductsBtanninsfromtea,coffeeandwineCchromogenicpolyphenolsfromfoodDchromogenicbacteria正確答案：ABCD第2題Porphyriaisagroupofgeneticdisorderscausedbyabnormalitiesinthechemicalstepsleadingtohemeproduction.第3題Tetracyclinecancausestainingofbothenamelanddentin.However,theaffinityoftetracyclinetodentinisapproximately()thanthattoenamel.A2timeshigherB4timeshigherC2timeslowerD4timeslower第4題SomeresearchersstatethatthediscolorationinducedbywhiteMTAmaybeattributedto(),whichisaddedtoimprovetheradiopacityinbothgrayandwhiteMTA.ABariumsulfateB

Calcium

tungstateCzincoxideDbismuthoxide第5題()showsthehighestoxidationpotential.AhydroxylradicalBhydroperoxylradicalChydrogenperoxideDcarbamideperoxide第6題Contraindicationstohomewhiteninginclude().Aage-yellowingdiscolorationBteethwithlargepulpcavitiesCteethwithperiodontaldiseasesDsmokers正確答案：BCD第7題Itisnotnecessarytohaveareservoirplacedinawhiteningtraybecausetrayswithreservoirs().AarelessretentiveBrequiremorewhiteningmaterialCaremorebulbousandthickerDmadeforthelowerarchmaycauseocclusalinterference正確答案：ABCD第8題Postbleachinginstructionsincludearecommendationtowaitaminimumof()afterin-officebleachingbeforedrinkinganychromogenicdrinks.A6hoursB24hoursC48hoursD1week第9題Contraindicationsforintracoronalbleachingofnonvitalteethincludesuperficialenameldiscolorations,defectsintoothstructureanddiscoloredresincompositerestorations.第10題Applicationofminimallyinvasivetechniquesincariesmanagementrequiresthat().AonlythediseaseddentalhardtissueshouldbeexcavatedBthecavityshouldbekeptassmallaspossibleCthecavitywallsshouldbephysicallyandchemicallyoptimizedtoreceivesuitableadhesivematerialsDthehealthytissuecanbepartiallyremovedtopreventrecurrentcaries正確答案：ABC第11題The()ofacoloristhemostimportantfeatureofshadeselection,becausethehumaneyesaremoresensitivetoit.AhueBchromaCvalueDsaturation第12題Thevita3Dmastershadeguideisavalue-basedshadeguide.AhueBchromaCvalueDsaturation第13題Commonlyusedtechniquesformoisturecontrolinclude().AaspirationBcheekandlipretractorsCcottonwoolrollsDrubberdam正確答案：ACD第14題Stratificationtechniqueshouldbeusedwhenperformingthedirectresincompositerestorationbecauseof().AtherequirementofcariesremovalBdepthofCureCpolymerizationShrinkageDesthetics正確答案：BCD第15題Usuallyconventionalresincompositescanbecuredtoadepthof()mm.A1-2B2-3C3-4D4-5第16題Externaltoothbleachingisusuallyperformedwith10%carbamideperoxide,whichisequivalentto()hydrogenPeroxide.A2%B2.5%C3%D3.5%第1題Thepermeabilityoftherootis10to20timeslessthanthatofasimilarthicknessofcoronaldentin.第2題Determiningthe()statusofthepatientisaprimaryconsiderationbeforeanendodontictreatmentplanisestablished.AmedicalBdentalCpulpalDpsychosocial第3題PatientsintheASA()categoryorabovewillalmostalwaysrequiremedicalconsultationandpossibletreatmentmodifications.AIIBIIICIVDV第4題Thefollowingpreoperativefactorsaffecttheoutcomeofprimaryendodontictreatment:().AperiapicalradiolucencyBexistenceofasinustractCnarrowbutdeepperiodontalprobingdepthDpain正確答案：ABCD第5題Forlowerpremolarswithtworootcanals,thebuccalcanaloftenbranchesbelowthechamberatasharpangle,andiseasilymissedintheendodontictreatment.第6題Theassociationbetweenrhinosinusitisandtheteethincludesthefollowingaspects:().AsinuspainisoftenperceivedbythepatientsaspainoriginatedfromtheupperposteriorteethBrhinosinusitiscannothealbecauseofthepulpitisoftheupperposteriorteethCafterthepulpnecrosis,theinfectionwillspreadandcausesinusinfectionsDthetreatmentofrhinosinusitisshouldalwaysinvolveadentist正確答案：AC第7題Ifthepulpofasuspicioustoothisstillvital,chancesarethistoothisnottheoriginofthesinusdisease.第8題Whethertheaffectedtoothcanberestoredshouldbeevaluatedbeforeinitiatingtheendodontictreatment.第9題Fornonsurgicalrootcanalretreatment,teethwithpreexistingapicalperiodontitishaveahigherhealingratewhencomparedwiththosewithoutpreexistingperiapicallesions.第10題Fingerspreadersarelesslikelytoinducerootfractureswhencomparedwithhandspreaders.第三章測(cè)試第1題Thoroughremovalofthecontaminated()isessentialforthemaintainenceofperiodontalhealth.AsubgingivalcalculusBsubgingivalplaqueCgingivalepitheliumDsupragingivalcalculusEsupragingivalcalculus正確答案：AB第2題()isthefoundationofperiodontaltreatmentAoralhygieneinstructionBapplicationofantibioticsCsubgingivalscalingDrootplanningEevaluationofsystemichealthstatus正確答案：BD第3題In1990s,()wasdevelopedtoaidinthevisualizationofsubgingivalscalingandrootplanningandalsotoimprovethediagnosisandmanagementofperiodontaldiseases.AadentalmicroscopeBadentalsurgicalloupeCafluorescencespectroscopeDafiber-opticperiodontalendoscope第4題Intheperiodontalendoscopicsystem,thefiberprovidesdetailedandhighlymagnifiedimagesoftreatmentsite.第5題Intheperiodontalendoscopicsystem,thetissueretractionshieldprovideconstantsourceoflavage,keepthelensfreefromdebris,providingclearimage.第6題The()complexisplacedintothesulcusbyclinicianforsubgingivalviewinginendoscopicSRPAfiber-sheathBfiber-exploreCfiber-sheath-exploreDfiber-sheath-explore-watersupplier第7題Conventionalorextensiveflapsurgeriesmayleadto().AthelossofinterdentalpapillarygingivaBlossofgingivalheightandcontourCrootsensitivityDcrestalboneresorption正確答案：ABCD第8題MinimallyInvasiveSurgerycanbedefinedas“Thesearesmallerandmoreprecisesurgicalprocedures,utilizingsmallincisions,utilizingoperatingmicroscopesandmicrosurgicalinstrumentsandmaterials,toachievesamesurgicalendpointasthatofconventionalsurgicaltechniques.“第9題ThedevelopmentandrefinementoftheMISapproachesisgreatlysupportedbytheuseof().AoperativemicroscopesBmagnifyinglensesCmicrosurgicalinstrumentsDmaterials正確答案：ABCD第10題The()isthemostimportantconsiderationofMISTinperiodontalsurgery.AtissuedebridmentBpapillapreservationCtheconservativeelevationoftheflapsDplaquecontrol正確答案：BC第11題MISTissuitableforisolatedinterproximaldefectwhichdoesnotextendbeyondtheinterproximalregionandmultiple,isolatedinterproximaldefectswithinaquadrant.第12題ContraindicationsofMISTincludegeneralizedverticalbonedefectsandmultiple,interconnectedhorizontaldefects.第13題Thedefect-associated

interdentalpapilla

isaccessedeitherwiththemodifiedpapillapreservationtechniqueinnarrowinterdentalspaceslessthan2mm,orthesimplifiedpapillapreservationflapinlargeinterdentalspaceswhicharemorethan2mm.第14題TheclinicalrationaleforthedevelopmentoftheMISTincludes().AreductionofsurgicaltraumaBincreaseinflap/woundstabilityCimprovementofprimaryclosureofthewound