Patent ID: 9662188
Date: 2017-05-30
CPC Classifications: A61C

Claim:
1. A method for producing a dental restoration part from a virtual restoration part using geometrical data of the virtual restoration part, comprising: generating color data as three-dimensional, stereometrically generated data based on at least a tooth to be restored or replaced, one or more neighboring teeth of the tooth to be restored or replaced, or a tooth stump of the tooth to be restored or replaced; dividing the color data into a plurality of individual, three-dimensional sections extending through the virtual restoration part; determining the differences of the sections with respect to individual color parameters and allocating tooth colors to be used; conditioning and storing the tooth colors; converting the tooth colors into machine-readable data for the production of the dental restoration part; transferring the machine readable data to a computer assisted manufacturing (CAM) device; building the color-adjusted dental restoration part in layers using dental material of different tooth colors, wherein the color data is produced by creating a three-dimensional color photo, wherein at least two different positions of at least one camera from different angular positions take a photo of a neighboring tooth and/or a tooth stump for the dental restoration part, which color photos are stereometrically superimposed thereby creating a 3D image, wherein the created three-dimensional color photo is rendered, and the virtual dental restoration part is simulated on the screen and is compared to the color photos of the neighboring tooth, and wherein the virtual dental restoration part is adjustable with respect to thickness, transparency, and material selection after optical comparison with the neighboring tooth, and when the optical comparison does not meet a predetermined criteria, the virtual dental restoration is rendered again, until the comparison meets the predetermined criteria, before CAM manufacturing of the dental restoration part such that no actual dental restoration part is necessary for comparison to neighboring teeth.