Hello and thank you for your time! About 6 months ago I had a root canal. For the last three days I have some swelling on my gums directly below the root canal. Both swelling and pain are slightly worse every day. I have an appointment to see my dentist in two days, but am not sure if I should attempt to seem her tommorow. When I floss, the floss can slide under the crown and get stuck, so I believe there is a chance a piece of food got stuck and could be causing the swelling. Thanks again!