Dentistry – Apparatus – Tooth selection guide
Patent
1992-04-23
1993-11-16
Wilson, John J.
Dentistry
Apparatus
Tooth selection guide
A61C 1910
Patent
active
052618153
ABSTRACT:
A system for providing artificial teeth with lifelike shade and hue, or for matching the shade and hue of an artificial tooth with the shade and hue of one's natural teeth, employs a single-sided master shade/hue guide and a plurality of paired sample teeth, with each pair attached to a holder and having the same shade and hue corresponding to a tooth on the master shade/hue guide. The artificial sample teeth on the single-sided master shade/hue guide are arranged either by shade from light to dark or by hue, with the teeth grouped by color and sequenced from light to dark within. The master shade/hue guide as well as each pair of shade/hue matched sample teeth includes a respective background panel disposed aft of and extending above the aligned sample teeth for providing a uniform background color field for optimum viewing of the sample teeth. The master shade/hue guide as well as each pair of shade/hue matched sample teeth is also adapted for use with a background tab positioned aft of the sample teeth and adapted for insertion in a patient's mouth which allows for choosing the correct shade/hue by juxtaposed comparison of sample teeth with the patient's natural teeth. The background tab provides an extended uniform color field background for highly accurate comparison and selection of artificial teeth shade and hue. In addition, the background tab is inexpensive and disposable eliminating the requirement to sterilize the shade/hue guide or matched pairs of sample teeth prior to use by another patient.
REFERENCES:
patent: 2341153 (1944-02-01), Myerson
patent: 3436156 (1969-04-01), Adler et al.
patent: 4115922 (1978-09-01), Alderman
patent: 4747776 (1988-05-01), Sudderth
patent: 4802850 (1989-02-01), Boon
American Tooth Industries
Wilson John J.
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