Dentistry – Apparatus – Tooth selection guide
Patent
1993-09-24
1996-03-12
Lucchesi, Nicholas D.
Dentistry
Apparatus
Tooth selection guide
4332031, A61C 1910, A61C 1308
Patent
active
054981573
ABSTRACT:
A dental color mixture indicator device is described.
In an embodiment, the dental color mixture indicator device (420) comprises four component indicator devices (400-403) each retained by a common base (410). Each component indicator device (400-403) has an array of color samples (Y1-2,C1-3,R1-2) mounted to individual blades (430,440-442,450-452,460-462), with each group of blades able to be plucked from the base (410) for the purposes of a comparison with a tooth. Each color sample (Y1-2,C1-3,R1-2) corresponds with an artificial tooth material, and, on the basis of the comparison, a mixture of the respective tooth materials allows correct color matching of a restorative tooth.
The arrayed color samples (Y1-2,C1-3,R1-2), coincide with a corresponding location on a color co-ordinate system. The central colors (201) of each component indicator device (400-403) are offset from other ones of central colors with respect to the color co-ordinate system. This means a fewer number of samples are required than in the prior art to encompass the whole body of tooth color.
REFERENCES:
patent: 4207678 (1980-06-01), Jeannette
patent: 4657399 (1987-04-01), Hall
patent: 4802850 (1989-02-01), Boon
patent: 4919617 (1990-04-01), Antons et al.
patent: 5114340 (1992-05-01), Hahn
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