I initially thought of treating only the necrotic dens in this case because the tooth responded to heat and cold indicating that the apical lesion was probably from the dens. But, after the initial visits, the patient had persistent pain. So, I opened up both the canals, one of which was very hyperemic. I put this tooth on calcium hydroxide for 12 months and Obturated after the lesion healed. Placed Fiber-posts to strengthen the tooth. No crown for now.