“My top right molar has been acting up for over a year now. It was first sensitive to cold, but then I used special toothpaste and this stopped, but recently it has started to hurt when I bite. I haven’t been able to chew with the left half of my teeth for months now. It does not otherwise hurt, has no visible cavities, and is not particularly sensitive, either. The tooth has been filled before, and I have gotten an antibiotic root filling, and the tooth has received fluoride treatment as well. I had it x-rayed and there is no sign of an infection or cavitation anywhere.