We are proud to present a new release of our freeware surgical drilling simulator. That uses advanced volume ray casting and haptic force feedback to simulate a realistic drilling procedure in the temporal bone. This version has a complete drilling tutorial that guides the user through a whole masteodectomi.
Notice the light green coloured bone structures, this indicates where the surgeon should drill. And the dark green coloured is used to display the bone that should have been drilled away in the previous steps.
More info can be found here http://ves.cg.alexandra.dk/