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Innovative CAD/CAM Protocol for Fabricating Screw-Retained Implant Resin Provisionals

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Fay, Guadalupe Garcia
Hack, Gary, D.D.S.
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2018
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Intraoral scanners and the use of Computer-Aided Design and Manufacturing (CAD/CAM) produces dental restorations that have a high level of accuracy which equals or exceeds that achievable utilizing the conventional fabrication process. There are various ways of fabricating an implant provisional restoration, but this usually involves a multiple series of steps if done in a conventional manner. With the advent of digital dentistry there are less steps involved thus facilitating an easier process, however, if the suggested milling units are not available there is a possibility of utilizing an alternative process. The purpose of the study was to develop an innovative CAD/CAM protocol. To mill a screw-retained provisional crown using Sirona’s CAD/CAM systems, normally a Telio® CAD A16 provisional resin block and the use of an MCXL Milling Machine and Omnicam is needed. A16 are cross-linked poly methyl methacrylate (PMMA) blocks indicated for the fabrication of long-term temporaries by means of the CAD/CAM technique. These blocks have a pre-drilled, machined perforation to allow the milled block to accept a TiBase abutment on one surface, and another machined perforation on the opposing surface to allow the insertion of the implant screw. Our objective was to develop a protocol to mill a provisional screw-retained restoration using Sirona’s Compact Milling Machine (CMM) with a BlueC

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Presented at the annual meeting of the American Association for Dental Research held March 21-24, 2018, in Fort Lauderdale, Florida
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