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ID:19157565
大小:7.97 MB
页数:49页
时间:2018-09-26
《第7章_颞下颌关节紊乱病(英文)课件》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、TEMPOROMANDIBULARDISORDERSAmericanDentalAssociation,1983definedTMDasagroupoforofacialdisorderscharacterizedby:Paininthepreauriculararea,TMJ,ormusclesofmasticationLimitations/deviationsinmandibularrangeofmotionTMJsoundsduringjawfunction1990YCraniomandibularDisorders(CMD)Definitio
2、nEpidemiologyofTMDTMDpainhasbeenestimatedtoaffect10%(5-12%)ofthepopulationItisatleasttwiceascommoninwomenasinmenItoccursmorefrequentlyinpeople20-50yearsoldAnatomyofTMJMandibularcondyleJointsurfaceoftemporalboneArticulardiscTMJcapsuleTMJligamentMulti-axis&multi-direction►Movement
3、agilityAimportantpartinstomatognathicsystem►AremodelinginalllifetimejointAnatomyofTMJSagittalplaneview:Therelationshipamongdics&condyle&glenoidinCOPNormal:Oneplane:frontbevelofcondyle/middlepartofdisc/posteriorbevelofnodeOneline:crossridgeofcondyle/posteriorborderoflaterbeltofdi
4、sc/peakofglenoidAbnormal:1.Retrusionofcondyle2.HyperfunctionoflateralpterygoidmuscleAnatomyofTMJCoronalplaneview:therelationshipofdisc&condyle&nodeinCOPNormal:middlepositioncondyleanddiscinmiddlepositionAbnormal:Ingressionorout-shiftofcondyleanddiscAnatomyofTMJEtiologyofTMDPsych
5、icfactorBadhabitsTraumaOthersOcclusalfactor:OcclusalinterfereProtrusiveocclusalinterfereLateralocclusalinterfereRetrusiveocclusalinterfereHighspot×occlusionEtiologyofTMDLateralocclusalinterfereOcclusalfactorPrematurecontact:interferehappenedinPPtoICPElongationofupper3rdmolarAnte
6、riorsuperiordisplacementofcondyleElongationoflower3rdmolarPosteriordisplacementofcondyleEtiologyofTMDOcclusalfactorMalocclusion:MalocclusionofindividualtoothMalocclusionofdentitionEtiologyofTMDAnteriorteethlingualtippingdeepoverbiteOcclusalfactorMoreteethlosedLateralmolarsloss:u
7、nilateralmasticationBilateralmolarsloss:PosteriordisplacementofcondyleMaladjustmentofReversetensilereflectionEtiologyofTMDOcclusalfactorChangeofinterarchdistance:Morehigher:apertognathiaMorelower:excessivewearAnteriorinferiordisplacementofcondyleSustainedtensionofmasticationalmu
8、sclePosteriorsuperiordisplacementofcondyleMalad
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