I am using Pontic Wax-up – not a reduced pontic. My pontics seem to be adapted to the jaw scan, not the virtual gingiva. When I try to load over the reduced merged wax-up, the teeth don’t “Rotate” into the correct fit. Where am I going wrong here?
That is correct. The pontics adapt to the jaw scan gingiva. DentalCAD assumes that the jaw scan for pontics does not contain teeth, so it adapts directly to the jaw scan. If you are putting pontics over teeth for a digital waxup, you need to virtually extract the teeth.
Teeth not “rotating” depends on how you saved the individual teeth/pontics in the first place.
If you saved with the top option (relative to scan, I think) that means the original orientation. If you save the teeth with the bottom option (relative to the scene) that means in the scene position. When you reopen the original jaw scan, in the original orientation, then import the pontics and you saved them RELATIVE TO THE SCENE, they will have to be rotated back to the original position. If you saved the jaw scan along with the teeth using the bottom option, when you reopen the jaw scan and import the teeth, they DO NOT have to be rotated because all the STL files share the same orientation (as relative to the scene).