Dental mill blank assembly and method for making the same
First Claim
1. 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 bonded to the milling section by a chemical bond directly between the material of the support section and the material of the milling section.
1 Assignment
0 Petitions
Accused Products
Abstract
A mill blank assembly for a dental prosthesis includes a milling section and a support section for supporting the assembly in a milling machine. In certain embodiments, the milling section is adhesively bonded to the support section by a direct chemical bond that provides enhanced resistance to unintentional detachment of the milling section from the support section during a subsequent machining operation. Optionally, the support section includes a passageway that receives a quantity of flowable dental restorative material used to make the milling section, such that the restorative material that is located in the passageway provides additional resistance when hardened to unintentional detachment of the milling section from the support section.
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Citations
56 Claims
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1. A mill blank assembly for a dental prosthesis comprising:
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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 bonded to the milling section by a chemical bond directly between the material of the support section and the material of the milling section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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- 10. A dental mill blank assembly consisting essentially of a milling section and a support section, wherein the milling section is made of a material having a composition different than the composition of the support section.
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17. A dental mill blank assembly comprising:
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a support section having a shaft for releasably supporting the mill blank assembly in a milling machine, the support section including a through passageway; and
a hardened restorative material connected to the support section, wherein a portion of the hardened restorative material is located within the passageway, and wherein another portion of the hardened restorative material is located externally of the passageway, serves as a milling section and is integrally connected to the portion of hardened restorative material located within the passageway.
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22. A method of making a dental mill blank assembly comprising the acts of:
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providing a mold assembly that includes a first mold component, a second mold component and a mold cavity defined at least in part by the first mold component and the second mold component;
directing a quantity of restorative material into the mold cavity;
reacting the restorative material with the second mold component in order to establish a chemical bond between the restorative material and the second mold component; and
hardening the restorative material located in the mold cavity. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of making a dental prosthesis comprising the acts of:
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providing a mold assembly that includes a first mold component, a second mold component and a mold cavity defined at least in part by the first mold component and the second mold component;
directing a quantity of restorative material into the mold cavity;
establishing a bond between the restorative material and the second mold component;
hardening the restorative material located in the mold cavity;
separating the first mold component from the restorative material;
mounting the second mold component in a milling machine; and
milling the hardened restorative material at least partially into a dental prosthesis. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 54, 55, 56)
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48. A method of making a dental mill blank assembly comprising the acts of:
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directing a quantity of restorative material through a passageway of a support section; and
hardening restorative material located within the passageway as well as restorative material located externally of the passageway, such that the hardened restorative material located externally of the passageway serves as a milling section and the hardened restorative material located within the passageway resists detachment of the milling section from the support section.
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Specification