Dentistry – Apparatus – Tooth selection guide
Reexamination Certificate
2007-12-04
2007-12-04
Rodriguez, Cris (Department: 3732)
Dentistry
Apparatus
Tooth selection guide
C433S072000, C433S203100
Reexamination Certificate
active
11458685
ABSTRACT:
In a shade determination apparatus for porcelain crowns a set of plastic over-tabs in different shades, sizes and specific areas of the tooth, are provided. Based on the specific base shade selected, the set of over-tabs can be tried on to any standard shade guide to achieve a more life-like appearance of the porcelain crown to match the natural teeth surrounding the crowned tooth. Different areas of the tooth such as the cervical and the incisal can be custom stained to match the natural teeth. Along with the different areas of the tooth a practitioner can determine the size of the particular area, i.e. the cervical one-third or the incisal one-half. The over-tabs can be tried on simultaneously, i.e. a cervical one-half shade can be tried on with a incisal one-half shade at the same time, thus determining a better shade match. There are also six “white striation” tabs that can fit over the other tabs at the end to determine a better match of the natural tooth.
REFERENCES:
patent: 4620841 (1986-11-01), Farrell et al.
Alexander Jaime
Rodriguez Cris
Stokes Candice C
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