초록 ▼

In a process of making artificial teeth horizontal or other contour lines are generated on the ground tooth stump and on adjacent surfaces, said lines are detected by optoelectronic means, the data which have thus been acquired are used to compute the three-dimensional shapes of the tooth stump and

In a process of making artificial teeth horizontal or other contour lines are generated on the ground tooth stump and on adjacent surfaces, said lines are detected by optoelectronic means, the data which have thus been acquired are used to compute the three-dimensional shapes of the tooth stump and of the required artificial tooth, and an artificial tooth having the shape which has thus been determined is then made by processes known per se.

대표청구항 ▼

A process of making artificial teeth comprising, generating horizontal or other contour lines on a ground tooth and on adjacent surfaces, acquiring data derived from said lines by optoelectronic means, computing the three-dimensional shapes of the tooth and of the required artificial tooth from said

A process of making artificial teeth comprising, generating horizontal or other contour lines on a ground tooth and on adjacent surfaces, acquiring data derived from said lines by optoelectronic means, computing the three-dimensional shapes of the tooth and of the required artificial tooth from said data in accordance with the formula I=a×(1+m×cos q1) wherein: I=intensity a=background brigthness m=contrast q