Virtual dental restoration insertion verification

A non-transitory computer readable medium storing executable computer program instructions to provide digital dental restoration insertion verification, the computer program instructions comprising instructions for:

• receiving a digital model comprising a digital dental restoration and a digital preparation tooth;
• adjusting the digital dental restoration to provide a reduced digital dental restoration to account for tolerances;
• determining an initial virtual insertion path position and orientation of the reduced digital dental restoration as a lifted position from the digital preparation tooth at which no collisions occur;
• digitally determining one or more intermediate positions toward the digital preparation tooth;
• digitally determining a collision free position and orientation at the one or more intermediate positions, and
• providing the digital dental restoration to computer aided manufacturing (“CAM”) and generating a physical dental restoration based on the digital dental restoration,
• wherein digitally determining the collision free position and orientation is performed in parallel at one or more position and orientation combinations,
• wherein digitally determining the collision free position and orientation comprises evaluating only those shift positions in which a maximum displacement of reduced digital dental restoration surface points to a particular shift position is within a user-configurable search radius.

A system for digital dental restoration insertion verification, the system comprising:

• a processor;
• and
• a non-transitory computer-readable storage medium comprising instructions executable by the processor to perform steps comprising:
• receiving a digital model comprising a digital dental restoration and a digital preparation tooth;
• adjusting the digital dental restoration to provide a reduced digital dental restoration to account for tolerances;
• determining an initial virtual insertion path position and orientation of the reduced digital dental restoration as a lifted position from the digital preparation tooth at which no collisions occur;
• digitally determining one or more intermediate positions toward the digital preparation tooth;
• digitally determining a collision free position and orientation at the one or more intermediate positions, and
• providing the digital dental restoration to computer aided manufacturing (“CAM”) and generating a physical dental restoration based on the digital dental restoration,
• wherein digitally determining the collision free position and orientation is performed in parallel at one or more position and orientation combinations,
• wherein digitally determining the collision free position and orientation comprises evaluating only those shift positions in which a maximum displacement of reduced digital dental restoration surface points to a particular shift position is within a user-configurable search radius.