To visualize distance to (or intersection with) antagonists, use the CAD button called "Show Distances". A new window will appear, and the CAD display will show the distance to antagonist for each restoration, color coded as follows:
Using drop-down control , you can expose additional controls as follows:
Slider  controls the color scaling, visualized in the false-color bar above.  indicates first, the maximum intersection (or closest distance) at the current mouse position. Using checkboxes , you can enable/disable visualization both for antagonist intersection/distance and intersection/distance to adjacent teeth. You can switch between visualization of intersections and visualization of distance by opening the control .
The default is intersection, which indicates the distance the scans overlap. Show Proximity  changes the display to measure the distance between non-overlapping scans.
To disable all visualizations, click the "Show distances" CAD button.