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Powder vs. Non-Powder
The purpose of this in vitro study was to investigate the differences among the following fabrication methods on the marginal discrepancy of dental crowns: intraoral optical scanners, powder application, and adjustments of intaglio surface.
A single human premolar was fixed on a typodont and prepared to receive crowns prepared by the Cerec CAD-CAM system. Three fabrication techniques were used: digital impressions using the Cerec Bluecam scanner with TDP (Titanium Dioxide Powder), digital impressions using the Cerec Omnicam scanner without TDP, and digital impressions using the Cerec Omnicam scanner with TDP.
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The Journal Of Prosthetic Dentistry, July 2017