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1、Int.J.OralMaxillofac.Surg.2012;41:10901096doi:10.1016/j.ijom.2011.12.026,availableonlineathttp://www.sciencedirect.comResearchPaperDentalImplantsD.Kurniawan,F.M.Nor,FiniteH.Y.Lee,J.Y.LimelementanalysisofDepartmentofMechanical,Robotics,andEnergyEngineering,Dong
2、gukUniversity,boneimplantRepublicofKoreabiomechanics:refinementthroughfeaturingvariousosseointegrationconditionsD.Kurniawan,F.M.Nor,H.Y.Lee,J.Y.Lim:Finiteelementanalysisofboneimplantbiomechanics:refinementthroughfeaturingvariousosseointegrationconditions.Int.J.O
3、ralMaxillofac.Surg.2012;41:10901096.#2011InternationalAssociationofOralandMaxillofacialSurgeons.PublishedbyElsevierLtd.Allrightsreserved.Abstract.Arefinementtechniqueisproposedfordevelopingfiniteelementmodelscapableofsimulatingperi-implantboneconditionsforbonety
4、pesII,III,andIVatvariousdegreesofosseointegration.Therefinedmodelsfeatureatransitionregionbetweenbone(corticalandcancellous)andimplantanddesignateitpartiallytofullyosseointegratedbyassigningcorrespondingfractionsofthebulkbone’selasticpropertiestothisregion.Bone
5、isassumedtobetransverselyisotropic.Therefinedtechniqueisimplementedinacasestudy,inwhichosseointegrated(25–100%)peri-implantbone,typeII,III,orIVwithanimplantattached,isloadedwitha100MPaocclusalload.Thebiomechanicsofthisperi-implantbonewassimulatedandanalysed.Res
6、ultsshowedthatthelessdensebonemustsupporthigherstressandstrain,especiallyatthecorticalregion.HigherdegreeofosseointegrationinducedhigherstressKeywords:finiteelementanalysis;osseointe-butlowerstrain.Boththebonetypeandtheosseointegrationconditiongration;significan
7、tlybonetype;bonedensity;transverselyaffectedthestress–strainrelation.Forminimumstressandstrain,denserisotropic;andstressandstrain;boneoverload.moreosseointegratedperi-implantboneisdesirable.Whenbonefailurecriteriawereset,basedontheyieldstrengthandstrainofthebo
8、ne,ahigherdegreeofAcceptedforpublication19December2011osseointegrationwasneededforthelessdenseperi-implantbonetobeconsideredsafe.Availableonline18January2012Thesuccessofdentalimpla
