Dental mill blank and support stub assembly
Assignee3M Innovative Properties Company
InventorsDean K. Reidt, Darin J. Meyertholen, John R. Cheney, Robert M. Biegler, Robert E. Brunsell
Life of this patent
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Abstract
A mill blank assembly for making a dental prosthesis includes a milling section and a support section. The support section is adapted to fit in a chuck or collect of a milling machine. One of the milling section and the support section includes a projection that extends into a recess of the other, in order to enhance the strength of the bond between the milling section and the support section. As a result, the completed assembly is less likely to fracture or become disassembled during the milling process.
Claims15
A mill blank assembly for a dental prosthesis comprising:
- a milling section made of a material suitable for making a dental prosthesis;
- and
- a support section having a shaft for releasably supporting the mill blank assembly in a milling machine, the support section being fixed to the milling section and being made of a material different than the material of the milling section, wherein one of the milling section and the support section includes a projection, and wherein the other of the milling section and the support section includes a recess that receives the projection.
Dependencies are inferred from the claim text.