10 Surgical, medical and dental planning and simulation systems comprised of display monitor and processing computer, medical navigation systems comprised of three dimension position sensor, display monitor and processing computer, medical robots for use in surgery; computer controlled or guided surgical tools, namely drills, saws,electrical surgical knives, and probes; control units comprising of processing computer and three dimension position sensor for surgical tools, namely for drills, saws, electrical surgical knives, and probes, Drilling machines and robots for manufacturing surgical templates, artificial limbs, prosthetics or replacement of teeth for use by medical technicians, surgical apparatus, namely, fixtures, clamps, registration markers and drill tubes for use in computer assisted surgery