chapter 7 extraction of teeth分析课件

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1、Chapter7ExtractionofteethI.IndicationsfortheextractionTeethwithperi-apicalinfectionsthatcanneitherbepreservedendodonticallynorbysurgeryTeethdamagedbytraumaIncaseofcrowdingorimpedederuption,milkteethandpermanentteethshouldbeextractedfororthodonticreasons.Duringprosthodontictreatmentinordertoma

2、intainnormalocclusionIndicationsfortheextractionSeveregumdiseasewhichmayaffectthesupportingtissuesandbonestructuresofteeth.Insufficientspaceforwisdomteeth(impactedwisdomteeth)TeethlocatedwithintheareaofthetumorReceivingradiationtotheheadandneckmayrequireextractionofteethinthefieldofradiation.

3、II.Impactedteeth(1)EtiologyAcuteinfectiousfeversofchildhoodInflammationoftheperidentalmembraneSeveretraumatismtothejawsAnkylosisofthemandibularjointEarlyextractionofdeciduousteeth(2)LocalEffectsofImpactedTeethDecayofFrontToothAbsorptionoftherootofthefrontmolarNeuralgiaPericoronalinfectionSubm

4、assetericSpaceCellulitisOsteomyelitisDiagnosisofImpactedTeethPantomogramDentalfilmtoidentifythenatureandextentofproblem.SurgicalRemovalProcedureIV.LocalContraindicationAcuteinfectionwithanuncontrolledcellulitisAcutepericoronitisAcuteinfectiousstomatitisMalignantdiseaseRadiotherapy(Osteoradion

5、ecrosis)V.SystemicContraindicationDiabetesCardiacdiseaseBlooddyscrasiasDebilitatingdiseaseAddison’sorsteroiddeficiencyFeverofunexplainedoriginNephritisPregnancyormenstruationSenilityVI.ComplicationFacialswellingLooseningofadjacentteethFractureofadjacentteethFractureofthebuccalorlabialplateIns

6、trumentsfracturedTeethorrootsintothemaxillarysinusDrainingtracksInadequatehealing(infection)InjurytotheinferioralveolarnervePostoperativehemorrhageorpainDrysocketComplicationPostoperativeHemorrhage:leadingcausePatient’smanipulationofthewoundForeignbodyinthesocketSharpbonemarginsandfracturedso

7、cketwallsExcessivegranulationtissueHypertensionClottingdeficiencyorvasculardisorderVII.InstrumentForcepsElevatorChiselMalletBurMultiplechoicequestionsSampleQuestion:1Multiplesupernumeraryteetharemostcommonlyfoundincherubism.cretinism.hypothyr