Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
System and method for employing signoff-quality timing analysis information concurrently in multiple scenarios to reduce dynamic power in an electronic circuit and an apparatus incorporating t
Self assembly of elements for displays
Systems and methods for printing images outside a normal color gamut in image forming devices
System and method for managing self-refresh in a multi-rank memory
Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection
Techniques for generating and displaying a visual flow of user content through a social network
Organic dual-gate memory and method for producing same
  Randomly Featured Patents
Semiconductor device and manufacturing method thereof
Descent control device
Process for producing cobalt metal powder
Scanner device having a sheet handling path with a reduced bending angle
Ink jet recording apparatus recording images when an ink jet recording head is installed thereon and reading images when an image reading head is installed thereon
Hardware efficient wavelet-based video compression scheme
High resolution fast diode clamped comparator
Automotive automatic transmission structure
Device for hooking pieces, in particular printed circuits, on transport lines present in tunnel type kilns and the like
Frame stripping method and circuit in FDDI (fiber distributed data interface) bridge system