I have a small red spot on the roof of my mouth. It feels very tender but I don't feel hardly any pain. I'm wondering If it is the start of an abscess. Is an abscess an infection or something? I've read infections can be a sign of your body rejecting the new metal. I wonder how do you know if theres a problem with hardware or bones healing? I'm so worried. I have an appt on Tuesday which I will definitely bring up but I'm so scared and 3 days is a long time to think.