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Dental Tribune Middle East & Africa Edition

DENTALTRIBUNE Middle East & Africa Edition International News 5 ADVANTAGES • Metaltometalconnectionbe- tween screw and abutment,so superior fit of coping to the abutment • custom designed for the indi- vidual patient • have an anatomical shape • reduction the number of im- pressions • compatible with most im- plant systems • ability to create duplicate abutment • increase crown retention • provide the ideal coronal preparation • reduction of chair time ESTHETIC ON THE TOP HYGIENIC BELOW Computer-designed and - generated implant abutments will fundamentally change the present restorative protocols for implant dentistry. Standard im- plant prosthetic techniques rely on implant-level impressions and costly casting technology for component fabrication. Implant abutments gener- ated by computer-aided design and computer-aided manufac- turing (CAD/Cam)are more pre- cise than those created using tra- ditional casting technology. This increased accuracy has specific application to implant dentistry, THE CLINICAL CHAL- LENGE: LONG-TERM TIS- SUE STABILITY When designing an abut- ment, the position of the implant inrelationtothefinalcrowncon- tour, the thickness and biotype of thesurroundingtissue,aswellas the location within the arch must be taken into account. For ce- ment-retained superstructures, it has been established that the location of the abutment-crown margin should always be located at, or slightly below, the gingival cresttoallowforthecompletere- moval of cement. If remnants of the cementation medium re- main, potential risk of peri-im- plant inflammation and adverse tissue reactions increase signifi- cantly. Researchhasbeenconducted and some products brought to market with concave transgingi- val sections.8 The concept be- hind this design is that creating a thicker band of gingival around the abutment will stabilize the soft tissue and mask the gray color of the titanium abutment at the gingival margin. A potential challenge with this design is that removing or replacing the abut- ment would likely necessitate anesthetizing of the patient. The narrow neck design could also lead to thin, potentially weak abutment wall TITANIUM AND ZIRCONIA MATERIALS FOR CLINI- CAL USE. Titanium abutments pro- vide a biocompatible and clin- ically well-proven treatment op- tion in areas where high strength is required or only lim- ited space is available and is far superior to cast alloys.. Today, zirconia is considered by many clinicians to be the material of choiceforabutments.Inaddition to material properties that allow its application in any area of the mouth, the greatest advantage of Zr02 is its unrivalled support of adjacent tissue. Zirconia ob- servably enhances tight adher- ence of peri-implant tissues while minimizing bacterial and plaque adhesion at the same time. The key benefit of homoge- neousmaterials suchastitanium and zirconia is that their use eliminates material incompati- bilities and corrosive phenom- ena arising from dissimilar metal alloys and interfaces be- tween cast and machined com- ponents. DT Qualident Dental Laboratory OLIVERBRIX DANIELEDELHOFF EGONEUWE VASILIKAITSAS ANGELOPUTIGNANO Cyprus 28-29/09/12 LECTURERS INTERNATIONAL CONGRESS IN IMPLANTOLOGYANDESTHETIC DENTISTRY HiltonParkNicosia Griva Dighenis Avenue, Nicosia, Cyprus1507 Web:nicosia.hilton.com ISTVANURBAN PANOSBAZOS GEORGEGOUMENOS STAVROSPELEKANOS ILIAROUSSOU Information&Registration for Greece: Omnipress Tel: +30 2102222637 +30 210 213 2084 middleeast@omnipress.gr www.omnicongresses.gr www.omnipress.gr FIDENTALMEDLtd ORGANIZEDBY SPONSORS 0/99/2-82 rpyC 21/99/0 sur ITNED ALPMI ERTNI YRRYTSI YGGYOLONTA LANIOTAATNR A HTSEDNA C SERGNOCL N CITEH NIISSS E T LENIAD yanmreG BREVILO CEL S FFOHLEDE XIRB RERUT Z SOZAABB y SONAPPA gargannuuHH NARBUNAVVATSI S N AKILSIAAVVA yllyatI UENOGE yanmreG ELENIAD SAASTIA EWU FFOHLEDE S ELEPSORVAAVTTAS MOUGEGROEG ZOZABSONAPPA SA SS S ONA S KE SOOO S NEM O a LGENA siocinbeW rpyCa,siociN inehgDiavirG kraPnotliH m ONANGITUP ocnotlih 7051sur ,euenvAAvsi aisociNk USOSSSROUAILI oi .asiocin:beWW cinn @ m.owww middleeaast 20 01203+3 mnipres :leTTe Omn tiof amrofnI gg m moc.notlih o.wwwrg.sessergno omnipress.gr 23120120+33762222 ss n ftioartsigeR&no GrGreece:Gr re g.sserrpinm 480 or G IDENTALMEDLtdF ORGANIZEDBY SPONSOORS