dental-anatomy(牙体解剖学).ppt

dental-anatomy(牙体解剖学).ppt

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Nothinggreatwaseverachievedwithoutenthusiasm.Emerson,welcome,EssentialsofStomatology,ToothAche,why,Haveyoueverhadatoothache?

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EssentialsofStomatologyConsistofmanycourses:

OralAnatomy&OralPathologyDentalCariesEndodonticsPeriodontalDiseaseMaxillofacialTrauma&OralCancerProsthodonticsOrthodonticsChildrenandOralhealthCare,LESSONCONTENT,Dentistryintroduction,DentalAnatomy,Questions,Howmanyteethdoyouhave?

OralAnatomy1.structure,classificationandfunctionofteeth,2.dentition,IntroductiontoDentalAnatomyAstudyofdentalanatomyrequireslearningaboutthemorphologyofthevariousteethinthehumandentitionsandknowledgeofhowtheshape,form,structure,color,andfunctionoftheteethrelatedtoeachotherinthesamedentalarchandtotheteethintheopposingarch.,dentalcrown,dentalcervix,rootoftooth,outlooksructure,cementum,dentin,dentalpulp,enamel,toothsectionstructure,Tissuesofthetooth.a.Enamel

（1）Makesupcrown.

（2）Hardestmaterialinthehumanbody.（3）Incapableofremodelinganrepair.,b.Dentin

（1）Makesupbulkoftooth.

（2）Coveredbyenameloncrownandcementumontheroot.Surroudingpulpcavity.（4）Exposeddentinisoftensensitivetocold,hot,air,andtouch（viadentinaltubules）.,Wedge-shapeddefect,c.CementumCoversrootoftooth.,d.PulpMadeupofbloodvesselsandnervesenteringthroughtheapicalforamen,supplynutrition,Apex-taperedendofroottip.Apicalforamen-openingattheroottip.,PeriodontiumIscomposedofthesupportingstructuresoftooth.gingivacementumalveolarprocessperiodontalligament,Periodontiuma.Alveolarprocess

（1）Bonethatsupportstheteeth.,b.Periodontalligaments

（1）Denseconnectivefibroustissuesthatconnectteethtothealveolarbone.

（2）Supportsandprotectsthetoothfromnormalshock.,periodontalligament,c.Gingiva-surroundstheteethandcoversthealveolarprocess.,primary/deciduousteeth,permanentteeth,Humanshavetwosetsofteethduringalifetime.Thefirstsetofteethtobeseeninthemouthistheprimary/deciduousteeth.Thesecondsetofteethisthepermanentteeth,DeciduousTeeth,PrimaryTeeth（milkteeth）Usually20innumber4incisors2canines4molarsperarch,PermanentTeeth,DevelopmentbeginswiththeeruptionofthefirstmolarsProcessrequires20yearstocompleteUsually28-32innumber,Permanentteeth,The4frontteetharethecentralandlateralincisors.Nexttotheincisorsarethecuspids.Nexttothecuspidsarethe8premolars,orbicuspids.Thefinal12teetharethemolars.Themolarshavepitsandfissuresthatcanharborbacteriaandarecommonlythesiteofdentalcaries.,UsedwithpermissionfromtheAmericanDentalAssociation,FunctionsofTeethincisorsEsthetic,pronounciation,cutfoodcaninesPierceandtearfoodPremolarsAssistroleMolarscrushandgrindfood,RelativeSize,Longestcrown=mandibularcanineLongesttooth=maxillarycanineWidestcrown=mandibularfirstmolarNarrowestcrown=mandibularcentralincisor,dentition,Alloftheteethinthemouthtogetherarereferredtoasthedentition,whichshapeislikebow.,primarydentitionisconsideredtobecompletedbyabout30monthsorwhenthesecondprimarymolarsareinocclusionTime:

fromabout30monthstoabout6yearsofage,Transitional（mixed）dentition:

thefirsttransitiondentitionbeginswiththeemergenceanderuptionofthemandibularfirstpermanentmolarsandendswiththelossofthelastprimarytooth,whichusuallyoccursatage11to12.Time:

6years12yearsorso,permanentdentition:

Time:

begin12yearsorso,thesecondmolarserupted,thesecondprimarymolarslossed.,Teeth,StomatognathicsystemMuscles,Bone,TMJ,occlusion,Dentistryintroduction,Muscles,maxilla,mandible,Bones,TMJ,Occlusion,Themostcommonoraldisease,DentalCaries,Decayinchildren,PulpalandPeriapicalDiseases,PeridontalDisease,Periodontaldiseaseshasanenormousimpactonindividualshealthandqualityoflifeandspeech,oralfunction,andfacialesthetics.,Dentalinjuries,Missingteeth,DentalCaries,PulpalDisease,PeriapicalDisease,PeriodontalDisease,Missingteeth,RCT（rootcanaltreatment）,Extractteeth,Implantteeth,Restoration,summaryEachtoothhasacrownandrootportion.Thecrowniscoveredwithenamel,andtherootportioniscoveredwithcementum.Themainbulkofthetoothiscomposedofdentin.Thefourtoothtissuesareenamel,cementum,dentin,andpulp.Thefirstthreeareknownashardtissue,thelastassofttissueToothname:

incisorcaninepremolarmolartwosetsofteeth:

primary/deciduousteeth&permanentteethDention:

primary,transitionalandpermanentdentition,Watchoutyourteeth！

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