For generations, dentists have met the slow destruction of severe gum disease with antibiotics — a powerful tool now shadowed by the global crisis of resistance. A year-long study conducted across Brazilian universities and Harvard suggests that omega-3 fish oil paired with low-dose aspirin may offer a comparably effective path, not by overpowering the body's inflammatory response, but by guiding it toward healing. The finding does not overturn established practice, but it quietly expands the horizon of what care might look like for the millions living with periodontitis.