I had a root canal done a couple of years ago and I never went back for the crown . Yesterday I woke up with an infection in my mouth . It was swollen around my neck on the same side as tooth and the gum area around tooth . It's the back tooth on the right side . I was told to go to ER by my dentist bc they could not see me in such short notice . I went to ER yesterday and started antibiotic I feel like swelling has gone down some . Today my whole root canal filling fell out it still has screw inside . The whole area is open now and tender . Some of my actual tooth is still the holding up the outer side of the gum the inside of the gum is limp . I can't see a dentist til Tuesday . Will I be okay until then ??? What do I need to do in the mean time ?? Please help me .