Back casting prefabricated incisal veneers
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United States of America Patent
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-
Mar 22, 2005
Grant Date -
Nov 28, 2002
app pub date -
Mar 25, 2002
filing date -
Mar 26, 2001
priority date (Note) -
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Abstract
An improved lost wax method for fabricating dental devices, a prefabricated incisal veneer (1) is selected from among a group of said veneers having predetermined shapes, shades, and sizes. Wax is applied (2 and 3) to the incisal veneer to create a wax buildup onto a model (4) or prefabricated coping (5). Subsequently, a sprue is attached to the applied wax (2 and 3) and the wax buildup is removed from the model (4) for investing and burnout to create a lost wax mold. For a crown with a substructure, the incisal veneer (1) and the coping (5) are both cast in place with press ceramic, press thermoplastic material, or by injecting a curable resin, composite, or epoxy material into the lost wax mold.
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