Dental restorations formed by solid free-form fabrication methods
First Claim
1. A dental restoration wherein the entire restoration is formed by the method comprising:
- forming a reticulated structure of the entire restoration by a solid free form fabrication method from a composite material; and
infiltrating the reticulated structure of the entire restoration with a biomimetic substance selected from the group consisting of cell cultures, peptides and mixtures thereof.
6 Assignments
0 Petitions
Accused Products
Abstract
Solid free form fabrication techniques such as fused deposition modeling and three-dimensional printing are used to create a dental restoration. Three-dimensional printing comprises inkjet printing a binder into selected areas of sequentially deposited layers of powder. Each layer is created by spreading a thin layer of powder over the surface of a powder bed. Instructions for each layer may be derived directly from a CAD representation of the restoration. The area to be printed is obtained by computing the area of intersection between the desired plane and the CAD representation of the object. All the layers required for an aesthetically sound restoration can be deposited concurrently slice after slice and sintered/cured simultaneously. The amount of green body oversize is equivalent to the amount of shrinkage which occurs during sintering or curing. While the layers become hardened or at least partially hardened as each of the layers is laid down, once the desired final shaped configuration is achieved and the layering process is complete, in some applications it may be desirable that the form and its contents be heated or cured at a suitably selected temperature to further promote binding of the powder particles.
157 Citations
6 Claims
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1. A dental restoration wherein the entire restoration is formed by the method comprising:
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forming a reticulated structure of the entire restoration by a solid free form fabrication method from a composite material; and infiltrating the reticulated structure of the entire restoration with a biomimetic substance selected from the group consisting of cell cultures, peptides and mixtures thereof. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification