This is why both are important. So even on both
plavix and aspirin, you are only protected against clots, it offers no extra benefits against scar tissue or plaque formation. When a stent is inserted, the plaque is pushed into the artery wall, damaging it further. A normal artery lining is smoother than glass under a microscope, but a stent is very rough in texture, offering a great area for platelets to become active and form a clot.