PREMANUFACTURED CERAMIC DENTAL IMPLANT ABUTMENTS FOR MATING CERAMIC PROSTHETIC BUILD-UP CONSTRUCTION
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United States of America Patent
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Issued Date -
Sep 12, 2013
app pub date -
Mar 7, 2013
filing date -
Mar 8, 2012
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Abstract
A premade ceramic dental implant abutment includes a ceramic abutment having at the top a support region intended for receiving a mating prosthetic build-up construction with a surface feature to inhibit rotation of said construction, and at the bottom, an implant contact region with geometry to connect to the implant. The ceramic abutment has a passageway extending therethrough. The passageway may narrow to form a shoulder that is made entirely of ceramic. A head of a screw seats entirely on the shoulder. The ceramic abutment has a supragingival region for protruding beyond the gingiva and a subgingival end for extending into the gingiva. The ceramic abutment may be free of metal. Also, the premade ceramic abutment may be designed to be augmented by cementing additional ceramic material such as a ceramic prosthesis onto the ceramic abutment.
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