学习龋病学需要了解的人

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1、DentalCariesOuyangYongAssociateprofessorDepartmentofEndodonticsandOperativeDentistrySunYat-senUniversity岳松龄王满恩史俊南刘正樊明文李玉晶王嘉德周学东高学军凌均棨刘天佳学习龋病学需要了解的人史俊南刘正樊明文李玉晶周学东凌均棨吴补领高学军IntroductionPhotosofdentalcariesPhotosofdentalcariesPhotosofdentalcaries'Caries'isLatinf

2、or'rot'or'rotten'.Dentalcariesmeansrottenteeth.CariesisthenounwhichnamesthediseaseCariousistheadjective,not'acaries‘,'acariousarea'or'anareaofcaries'.DentalcariescanbedefinedasChronicprogressivedeconstructivediseaseofharddentaltissuesBacterialinfecteddiseasescause

3、dbyspecificbacteriaareversiblemultifactorialprocessoftoothdemineralizationandremineralization.DentalcariesDentalcaries,abacterialinfection,maybedefineasaposteruptivepathologicalprocessofexternalorigin,involvingthesofteningoftheharddentaltissueandproceedingtocavity

4、formation.Thisisdistinctfromthedissolutionoftheharddentaltissuesofanuneruptedtoothwhichisnotdentalcariesbuttoothresorption.Thecariousprocessapathologicalprocessoflocalizeddestructionofcalcifiedtoothtissuesbyacidsproducedbyorganisms.Etiologicallycariesisconsidereda

5、multi-factorialdisease,whichinvolvesinterplaybetweenthehost(salivaandteeth)microorganisms(streptococcusmutans),andthesubstrate(dietarycarbohydratesucrose),withtheproductionofLacticacid.Dentalplaque(Bio-film)servesasthemediumforcariesdevelopment.Basicpathologicalch

6、angesdemineralizationofinorganictissuesoftoothDisintegrationoftheorganictissuesoftoothinvolvesenamel,dentin,cementumEpidemiologyofdentalcaries流行病学Prevalencerate（患病率）：istheproportionofapopulationaffectedbyadiseaseofaconditionatonepointtime.Incidence（发病率）：isamesure

7、mentoftherateatwhichadiseaseprogressestheincreaseordecreaseinthenumberofnewcasesoccurringinapopulationwithinthesametimeperiodMeasuringcariesactivityDMFindexDthemeannumberofdecayedteethwithuntreatedcariouslesionsMthemeannumberofteethwhichhavebeenextractedandarether

8、eforemissingFthemeannumberoffilledteethDMF(T)todenotedecayed,missing,andfilledteethDMF(S)todenotedecayed,missing,andfilledsurfacesinpermanentteethdmf(t)