Dental porcelain shading kit, system and method

Details Dental porcelain shading kit, system and method Dental porcelain shading kit, system and method

1995-05-31

1997-11-11

O'Connor, Cary E.

Dentistry

Prosthodontics

Tooth construction

206 635, 427 229, A61C 1308

Patent

active

056857179

ABSTRACT:
The invention provides a kit, system and method for the preparation of porcelain dental restorations. First, second and third powders are provided in labeled containers. The first powder has a lightness value (L.sub.1) when formed into a least opaque porcelain layer. The second powder has a lightness value (L.sub.2) when formed into a less opaque ceramic layer. The third powder has a lightness value (L.sub.3) when formed into a most opaque ceramic layer. The .third lightness value is greater than the second lightness value, which is greater than the first lightness value. The lightness value differences between the third lightness value (L.sub.3) and the first lightness value (L.sub.1) are less than 2.5 CIE L*a*b units. Preferably, the first powder has a first hue (H.sub.1) when formed into the least opaque porcelain layer, the second powder has a second hue (H.sub.2) when formed into the less opaque ceramic layer, and the third powder has a third hue (H.sub.3) when formed into the most opaque ceramic layer. Preferably the first hue (H.sub.1) and the second hue (H.sub.2) are within 5 degrees of the CIE psychometric hue angle of the third hue (H.sub.3).

REFERENCES:
patent: 3628260 (1971-12-01), Jacobsen
patent: 4426404 (1984-01-01), Shoher et al.
patent: 4461618 (1984-07-01), DeLuca et al.
patent: 4604366 (1986-08-01), Kacicz et al.
patent: 4806383 (1989-02-01), Poltz
patent: 4810193 (1989-03-01), Wieder
patent: 4828117 (1989-05-01), Panzera et al.
patent: 4879136 (1989-11-01), Polz
patent: 4937928 (1990-07-01), van der Zel
patent: 5173114 (1992-12-01), Heurtaux
patent: 5314334 (1994-05-01), Panzera et al.

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