I got fracture in my previous filled tooth. After refilling there was lots of sensitivity. So my dentist change the filling with temp filling there was no sensitivity for few days but I use to feel pressure on my tooth. if I eat anything from that side. Now after 20 days. I am finding lots of pain/ discomfort in that and less sensitivity to cold (only. I also noticed a black mark (horizontal) on my gum inside. It might be because of the eqpt dentist use to suck the saliva. His assistant pressed it too hard. But there is too much discomfort in tooth and dentist told me that pocket is thr becoz of that I facing this issue. But before refilling, there was no problem.