White hard tiny spot after extraction.

Hi I had severe pain in tooth #46 for 2+ years. Had several cone beam CT scan on it&nothing found. But tooth was hurting for tapping and biting pressure on it. So they did root canal&no help. Did retreatment of root canal two times and no relief.pain continues. Constant pain pressure on that tooth even for touching pressing and tapping.I also have lower jaw pain near the ear lobe area in the mandible end for 2+ years now. I went to dentist for jaw pain and he spotted  #46 which hurts for tapping etc during that visit. Then had all dental work on it after. No relief. Had CT and MRI of TMJ too. Constant burning pain in the lower jaw under ear lobe area. I extracted #46 in end of July& Dr said it's infected at the end of tooth and jaw bone. I didn't get bone graft or implant on it yet. I still have pain in that socket gums& same lower jaw pain under ear area. I noticed 2 hard tiny spot like white bump on that socket#46 gums. Had x-ray. Dr said normal. Is that white tiny bump normal?