牙体牙髓病学的局部麻醉.ppt

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1、LocalAnesthesiainEndodonticsLocalAnesthesiainEndodonticsLocalAnesthesia–DefinitionAlossofsensationtopaininaspecificpartofthebodywithoutlossofconsciousness.LocalAnesthesiainEndodonticsTypesofinjectionsused:InfiltrationBlocksPDLIntrapulpalIntraosseousLocalAnesthesiainEndodonticsInfi

2、ltrationAnestheticinjectedinthemucosaMakescontactwithboneMustdiffusethroughspongybonetoreachthenerveendings(corticallayermustbethin)i.e.Maxillainadults,bothjawsofchildrenLocalAnesthesiainEndodonticsRetractlipandshakeAdvance3-4mm,anddeposit0.5cctostartLocalAnesthesiainEndodonticsTh

3、eMandibularNerveWhencorrectlypositioned,thelocalanestheticisdepositedabovethelingulaandthemandibularforamenInferioralveolarnerveLingualn.LocalAnesthesiainEndodonticsRetractthelipPlacethumbontheanteriorborderoftheramusApproachfromtheoppositeside(premolararea)LocalAnesthesiainEndodo

4、nticsAdvanceuntilyouhitboneWithdraw1mmAspirateInject¾ofcarpuleSLOWLY25gneedleisrecommendedLocalAnesthesiainEndodonticsEvenwhenproperlyadministered,itcanstillhave15-20%failurePositiveaspirationin10-15%ofcasesLocalAnesthesiainEndodonticsGowGates–V3blockInferioralveolarnerveLingualMy

5、lohyoidMentalIncisiveAuriculotemporalBuccalLocalAnesthesiainEndodonticsTargetareaistheneckofthecondyleLocalAnesthesiainEndodonticsNeedleisplacedjustbelowtheMPcuspofthemaxillary2ndmolarInjectslowlyLocalAnesthesiainEndodonticsSupplementalinjections:PDLSyringesonthemarket:Peripressan

6、dLigmajectLocalAnesthesiainEndodonticsAnesthesiaisachievedduetothesolutiondiffusingthroughthemarrowspacesinintraseptalbonePatientsmayexperiencepostopdiscomfortfor2-3daysAlthoughspecializedsyringesareavailable,thereisusuallynoneedforthem–however,significantforceisrequiredLocalAnest

7、hesiainEndodonticsIntraosseousInjection–Stabident,X-Tip,IntraflowLocalAnesthesiainEndodonticsLocalAnesthesiainEndodonticsAdvantagesofintraosseousinjectionsMorepredictabilityofachievinganesthesiaLesspostopdiscomfortThegingivalligamentsarenotaffectedLocalAnesthesiainEndodonticsLocal

8、AnesthesiainEndodonticsIntraosseo