Resources Contact Us Home
Method for accurately preparing the color of a dental restoration

Image Number 3 for United States Patent #6030209.

The present invention relates to a method for preparing the color of a dental restoration using a spectrophotometer and a unique color system for porcelain dental restorations which enables a dentist or technician to manipulate the various color components of the porcelain, hue, chroma, value, and translucency, independently. Color component deltas between consecutive colors in the powder sets are equidistant, with the difference in values being linear in color space. This enables simplified, exact matching of a specified color component value. The method comprises illuminating an abutting tooth with light, gathering reflected light, converting the gathered light to analog signals, correct for ambient light interference, translucency effects (if necessary) and varying illumination, using the result to obtain accurate color component values, and employing those values to chose and, where necessary, mix the appropriate powers to obtain the correct color porcelain for the desired dental restoration.

  Recently Added Patents
Dynamic bar oriented user interface
Hair motion compositor system for use in a hair/fur pipeline
Systems, methods, and apparatus to prepare a mobile device for provisioning
Method for manufacturing and reoxidizing a TiN/Ta.sub.2O.sub.5/TiN capacitor
Methods and apparatus for power amplifier calibration
HYR1 as a target for active and passive immunization against Candida
Inter vehicle communication system
  Randomly Featured Patents
Ultraviolet light stabilized polymers
Applications of light-emitting nanoparticles
Low power dissipation vacuum fluorescent display
Excitation circuit for gas discharge lamp
Flexible WLAN access point architecture capable of accommodating different user devices
Filigreed belt with solid center portion
Process for the production of gamma-butyrolactone
Means for the detection and treatment of prostate cells
Heat-shield brick, combustion chamber comprising an internal, combustion chamber lining and a gas turbine
Bridging link for electrically connecting insulation displacement terminals