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ePaper created 2014-11-20, 16:14:55 | version 1.30.01
case report _ CAD/CAM restorations I Be inspired by nature. The“Bionic Restoration“. Tizian Zirconia Reinforced Composite final restorations Gentle implant-supported www.schuetz-dental.com flexibilityregardingconstruction(angulation,dimen- sion) are further advantages. Furthermore, digital treatment concepts offer the possibility of chairside restoration and shortened treatment duration with- out compromising the healing period. Systems that do not require the use of powder offer the possibility of detecting the implant position during implant insertion and thus the possibility of a prosthetic restoration during exposure. In this way, the design and dimensions of the superstructure can be ideally created without the need for individual gingiva formers. From an aesthetic aspect, it makes sense to have a natural and tooth-coloured emergence pro- file. In view of possible recession, the risk of exposed metallic elements can be avoided. _Conclusion As described in the cases reported, the hybrid abutment and the hybrid abutment crown together offerasuitablealternativetofull-ceramicabutments made of zirconium dioxide ceramic. Contrary to zir- coniumdioxideabutments,thematingsurfacetothe implant body is made of titanium and not of zirco- nium dioxide ceramic. Since zirconium dioxide ce- ramic is harder than titanium, the implant body can beaffectedbymaterialabrasion,whichappearstobe confirmed by recent studies. In addition, a dark dis- colourationofthesurroundinggingivacanarisefrom the worn-off titanium particles, similar to amalgam tattoos. In aesthetically significant areas, such as the anterior maxillary zone, this would be a serious complication and could arise years after insertion. Regarding the adhesive bond between the TiBase andabutmentbody,theinitialdataisverypromising. If adhesion is performed carefully according to manufacturer’s instructions, it should not fail. Finally, further studies are needed to clarify the biocompatibility of adhesive gaps with the sur- rounding tissue positioned 0.4 mm from the implant shoulder and ideally also from the bone._ AD Dr Arzu Tuna Dr Umut Baysal Praxis am Nordwall Nordwall 2 57439Attendorn,Germany www.zahnarzt-attendorn.de CAD/CAM_contact CAD0414_16-19_Baysal 14.11.14 13:53 Seite 4 CAD0414_16-19_Baysal 14.11.1413:53 Seite 4