Medical breakthroughs sometimes sound like science fiction. And these three recent innovations are no exception. Researchers in Japan may be on the cusp of figuring out how to regrow teeth. Experiments using monoclonal antibodies were able to regenerate teeth in mice and ferrets. And research is now underway to see if it can work for humans. Another major accomplishment: Trial results for a new lung cancer drug showed unprecedented results. 60% of patients with advanced lung cancer — the world’s