A dental coloring stamp and a method of coloring
Assignee3M Innovative Properties Company
InventorsJacqueline C. Rolf, Andreas Herrmann, Michael Jahns, Dajana Zimmermann, Gallus Schechner
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Abstract
A dental coloring stamp has a transfer pad for transferring a dental coloring solution to a precursor of a dental restoration. The transfer pad is at least partially formed of an open-celled elastic sponge and has a free transfer surface. The cross-section of the transfer pad is greater than a circular area of 10 mm in diameter so that a side of a dental restoration precursor can be stamped and thus colored. The invention helps facilitating the coloring of dental restorations.
Claims12
A dental coloring stamp, comprising a dental coloring solution and a transfer pad for transferring the dental coloring solution to a precursor of a dental restoration, the transfer pad being at least partially formed of an open-celled elastic sponge, the transfer pad having a thickness along a stamping dimension and a transfer surface which extends in dimensions essentially laterally to the stamping dimension, wherein the transfer pad in dimensions laterally to the stamping dimension is greater than a circular area of 10 mm in diameter, and wherein the dental coloring solution comprises a solution comprising a solvent, a coloring agent comprising metal ions selected from one or more of Fe, Cr, Ni, Tb, Er, Pr, Mn, and a fluorescing agent comprising ions of Bi.
A method of coloring a dental restoration, comprising:
- providing a precursor of a dental restoration, the dental restoration precursor having two opposite sides in each of three dimensions of a Cartesian coordinate system;
- providing a dental coloring stamp soaked with a dental coloring solution;
- and
- stamping at least 80% of the surface of one side of the dental restoration precursor and the dental coloring stamp at least one time onto each other;
- and
- firing the dental restoration precursor to form the dental restoration.
Dependencies are inferred from the claim text.