Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2006-08-15
2006-08-15
Picard, Leo (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S098000, C433S223000, C433S024000
Reexamination Certificate
active
07092780
ABSTRACT:
A method for producing a dental restoration wherein a tooth preparation area is scanned either directly or indirectly. The scanned data is used by a computer controlled milling machine to create two or more investment blocks (50, 52, 54) for preparing a suitable dental restoration, the investment blocks being of a material which may be used in ovens operating in a 800° to 1,200° C. range. A suitable dental restorative material (18) and the blocks are place in an oven, and after being clamped together, the material (18) is pressed or injected into the investment blocks to form the desired dental restoration. Subsequently, after cooling, the dental restoration is divested from the investment mold and finished.
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Cunningham Eric
DePiano John
Ganley Robert
Hill Thomas J.
Ivoclar Vivadent A.G.
Kasenge Charles
Korman Alan S.
Picard Leo
Thompson John C.
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