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ID:62107511
大小:1.33 MB
页数:35页
时间:2021-04-16
《最新前牙美学区种植教学讲义PPT.ppt》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、前牙美学区种植●Thepredictabilityofaestheticsuccessdependsontissuelossattheinitiationoftreatment.●Specificimplantsystemsanddesignsdonoguaranteeaestheticoutcomes.●Hardandsofttissuedeficienciesmustbeaddressedpriortoimplantplacement.●Recreatingpapillabetweenmultipleadjacentimplantsisnotpre
2、dictable.Inthelast10yearsthefocushasshiftedfromosseointegration,tocreationofanimplantbornerestorationwhichisinharmonywiththesurroundinghardandsofttissue..Replacementofmultiplemissingteethintheaestheticzoneischallengingparticularlywhenthethreedimensionalarchitectureoftheexistingbone
3、andsofttissueisdeficient..2.ToothpositionInmanyinstancesteethwithapoorprognosisarethoughtlesslyextracted.Apico-coronal:moreapical,morecoronaloridealandmimictheleveloftheadjacentgingivalmargin.orthodonticextrusionFacio-lingual:positionedtoofarfacially,boneaugmentationprocedures;posit
4、ionedmorelingually,morefavourableMesio-distal:beequaltothatofthecontralateraltooth;orthodontics,enameloplastyorrestorations3.Rootpositionoftheadjacentteethdecreasetheverticalboneheight,harmproximalgingivalarchitectureorthodonticstorepositionmalposedteeth4.Biotypeoftheperiodontiumandt
5、oothshapeBiotypeⅠ:Athinbiotypewillrequiretheimplantbodyandshouldertobeplacedmorepalataltomaskanytitaniumshowthrough.WhenimplantsareplacedtowardthepalateaslightlydeeperplacementisrequiredtoallowforproperemergenceprofileBiotypeⅡ:Ideallythefacialcontourshouldbeslightlyflatterthantheco
6、ntralateralnaturaltoothtominimiseapicaldisplacementofthefreegingivalmarginafterinsertion.5.ThebonyanatomyoftheimplantsiteThedefinitiveimplantrestorationneedstobesurroundedbyahardandsofttissueenvironmentwhichisinharmonywiththesurroundingdentitionAdiagnosticwaxuphighlightingtissuedefici
7、enciesandfinaltoothpositioningcanassistintheplanningprocess①Facio-lingualridge②Mesio-distalspace③apicocoronaldimensionapicocoronaldimension●Heightandthicknessoffacialbonywalltheverticaldistanceofthedentogingivalcomplexonthemidfacialaspectis3mm,aslightapicallossoftissueupto1mm.Greatero
8、rless
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