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
Method and system for delivering and executing virtual container on logical partition of target computing device
Printing apparatus and method of operation of a printing apparatus
Image forming apparatus and method
Systems, methods, and apparatus to determine physical location and routing within a field of low power beacons
Particle measurement process and apparatus
Time sharing type autostereoscopic display apparatus and method for driving the same
  Randomly Featured Patents
Controller for a machine tool
Echo cancelling device for data transmission over two-wire lines
Infrared heating oven for the conditioning of plastic preforms
System and method for metastability verification of circuits of an integrated circuit
Channel detection device
Disposable cigarette lighter pouch
Immortalized bovine mannary epithelial cell line
Apparatus for the continuous production of continuous plastics foam webs
Frequency divider for tone source apparatus for Arabian scale in electronic organ