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Singlechoicequestions:Whatisconsideredtobetheprimarycauseofdentalcaries?(B)A.sugarB.plaqueC.salivaD.materiaalbaThefirststepintheformationofdentalplaqueis(A)A.acquiredpellicleB.materiaalbaC.fooddebrisD.bacterialcolonizationWhichofthefollowingnutrienthasbeenfoundtobeanoverwhelmingcauseofthedevelopmentofplaqueanddentalcaries?(B)A.proteinsB.carbohydratesC.mineralsD.vitaminsWhichofthefollowingmicroorganismshasbeenimplicatedinthedentalcariesprocess?(C)A.StreptococcussalivariusB.StreptococcusmitisC.StreptococcusmutansD.Veillonellasp.TheMOSTcariogeniccarbohydrateis(A)A.sucroseB.fructoseC.glucoseD.maltoseThestateofteethjoinedtogetheronlybycementumisdiagnosedas(B)A.fusionB.concrescenceC.buddingD.geminationTheprocessofdemineralizationwilloccurwith(A)A.cariesB.calculusC.greenstainD.yellowstainDentalhandpiecesmustbesterilized(B)A.onceadayB.aftereachpatientC.lubricatedonceadayD.afterworkingonapatientwithaknowncommunicablediseaseThemostfrequentlyisolatedmicroorganismonrootsurfacecariesis(C)A.LactobacillusB.StreptococcusmutansC.ActinomycesD.StreptococcusmitisTheancientbookrecordedasilveramalgampastefordentalfillingsover14centuriesagowaswrittenby(D)A.EgyptiansB.GreeksC.RomansD.ChineseShortnotequestions:1.DMFindex：Anindexformanagingstatisticallythenumberofdecayed,missing,orfilledteethintheoralcavity.2.TrendsofdentalcariesinepidemiologyTheprevalenceratehasdecreasedindevelopedcountries,andthisdeclineisusuallyattributedtoincreasinglybetteroralhygienepracticesandpreventivemeasuressuchasfluoridetreatment.InChinaandotherdevelopingcountries,theprevalencerateofdentalcarieshasincreasedduetotherisingsugarconsumptionandimperfectioninoralhygieneprophylaxis.3.Dentalplaque:Dentalplaqueisunmineralizedbacterialdepositethatbuildsupontheteeth.Itconsistsofadhesivematrixandbacteria.Ifnotremoved,itcanleadtodentalcariesorperiodontaldiseases.4.Purposesofdentalcariesrestoration:•Torestoretheintegrityofthetoothsurface.•Torestor
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