Program to make of cutting data for inner face of dental...

Details Program to make of cutting data for inner face of dental... Program to make of cutting data for inner face of dental...

2007-08-17

2010-10-12

Bennett, G. Bradley (Department: 2841)

Geometrical instruments

Gauge

Anatomical

C702S155000, C700S118000

Reexamination Certificate

active

07810249

ABSTRACT:
To remove an undercut part from three-dimensional data of the inner face, the program includes a surface model creating means to create a surface model based on three-dimensional data of a gypsum model including an abutment tooth, a cutting direction specifying means to specify a direction of a cutting bar, and a surface model creating means to create a surface model for machining by changing the three-dimensional data to have new coordinates by determining a base axis in parallel with the cutting bar in the surface model and plane moving coordinates of the cutting bar, and converting the coordinates of a point which becomes an undercut part, to be equal to the plane moving coordinates of a point having a high height from a specified face rectangular to the base axis at the opposite side of the occlusion face and a long distance from the base axis.

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