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CAD/CAM international C.E. magazine of digital dentistry North America Edition, No. 3, 2016

16 I I clinical_ implant restoration _One of the significant advantages of the Plan- meca FIT system is the ability to easily export your scans.Thisallowsuserstoworkwiththedentallabo- ratory to fabricate restorations that you aren’t able to create in the office. A restoration that lends itself to laboratory collaboration is an implant-supported full-coverage crown seated on a custom-milled titanium abutment. Therearemanyadvantagestofabricatingamilled customabutmentvs.workingwithastockabutment. By fabricating a custom abutment, one is able to create a proper emergence profile on the abutment and place the restorative margin ideally to aid in cement cleanup. A milled titanium abutment is also extremelystrongandcanbedesignedtoprovideideal thickness of the final restoration. Historically, custom abutment-supported im- plantrestorationswerefabricatedbytakingafixture level impression and shipping the impression to the dental laboratory for fabrication of the abutment and crown. While this yielded excellent results, each restorationwasquitecostlyandtookafairbitoftime for the lab to fabricate. Utilizing the Planmeca FIT (Planmeca/E4D Tech- nologies) system and the DDX laboratory portal (Henry Schein Inc.), dentists who utilize CAD/CAM technology are able to reduce lab turnaround time and fabricate the final crown in office, drastically reducing the costs. This is accomplished by utilizing a scan body to digitallycapturetheimplantpositionusingthePlan- scan (Planmeca/E4D Technologies) (Fig. 1). Scan bodies are available from many labs and implantmanufacturers.Thescanbodiesusedforthis case were obtained from 5 Axis Dental Laboratory (5 Axis Dental Laboratory, Whitby, Ontario). .STL files are exported to the laboratory via the secure, HIPAA-compliant DDX network, which al- lows the case to be in the laboratories’ hands almost instantly. The final restoration is fabricated on a printed model provided by the laboratory in the of- CAD/CAM 3_2016 Adding high-quality implant restorations to your digital armamentarium Author_Dr. Michael Kelliher Fig. 1 Fig. 1_ A scan body. (Photos/Provided by Dr. Kelliher)

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