牙体硬组织非龋性疾病.ppt

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1、牙体硬组织非龋性疾病NoncariesTeethDisease四川大学华西口腔医学院口腔内科学教研室李继遥DisorderofdevelopmentTeethinjuryTeethchronictraumaDentinhypersensitivityNoncariesTeethDiseaseabnormalstructureabnormalmorphologyabnormalnumberoftoothabnormalsequenceoferuptionDisorderofdevelopmentEnamelhypoplasia

2、DentalfluorosisAbnormalStructureTetracyclinestainedteethCongenitalsyphiliticteethHereditarydentinogenesisimperfectaPrincipeoftreatmentEnamelhypoplasiaisadefectintoothenamelthatresultsinlessquantityofenamelthannormal.1stsectionEnamelhypoplasianutritionshortageendocr

3、inedisorderdiseaseapicalinflammationofdeciduoustooth(Turnertooth)Etiologypits,grooves,linesorlargerareasofmissingenamelsurfaceyellowishorbrownishdiscolorationocclusaldistortion,aestheticproblems,sensitivitylocalizedorpresentonnumerousteethandallorpartofthesurfaceso

4、feachaffectedtoothmaybeinvolvedbilateralsymmetricdistributionClinicalFeaturesCariespreventionAestheticallyrestorationFunctionallyrestorationTreatmentAconditionofenamelhypoplasiacharacterizedbywhitechalkyspotsorbrownstainingandpittingofteethduetoanincreasedleveloffl

5、uorideaffectingenamelmatrixformationandcalcificationbyimpairmentofameloblasticfunction.DentalfluorosisEtiologyExcessivefluoridecontactClinicalFeatureswhitetobrownpigmentationpermanenttoothcommondeciduoustoothrareexcessivewearandfracturingoftheincisalandocclusalsurf

6、acessystemicsymptomsMILDMODERATSEVERETreatmentPreventionMicro-abrasivetreatmentComplexresinrestorationIntrinsictoothdiscolorationassociatedwithdrugsfromthetetracyclinefamily.3edsectionTetracyclinestainedteethTetracyclineincorporateintothecalcificationprocessofdeve

7、lopingteeth,affectseitherprimaryorsecondarydentitionaftermaternalorchildhoodingestionrespectively.EtiologyHistologicFeaturesTetracyclinesdiffusethroughdentintotheenamelinterface,chelatingcalciumionsandincorporatingintohydroxyapatiteasastableorthophosphatecomplex.Th

8、eaffectedteethfirsthaveabright-yellowbandlikeappearancethatfluorescesunderultravioletlight,thecolorgraduallychangestograyorred-brown.ClinicalFeat