Can Life Span Be Prolonged With Proper Lifestyle Changes Post Coronary Artery Stent Placement?

I recently had stent placement for a blockage in my mid circumflex artery. According to the cardiologist I have no damage, reflx was my only alert, however I had passed their stress test with flying colors. what alerted them to the potential blockage were the pictures that accompany the stress test pre and post exercise. So with 95 percent blockage of that artery, the stent was placed successfully. With proper lifestyle changes, will/can my life span be normal, and is restentosis common regarding the longevity of my stent.