Between my tooth in my upper mouth and gums is like a little swollen.  It is annoying me a lot.  Between my gum and my touth is like white stuff that wont go away. i have been flossing and rinsing with warm saltwater but it wont go away.  Its been 3 days and i am very worried.  In the car a few days ago i bit down to hard so idk if that has to do with it .  I have braces
Thanks for your query, I have gone through your query. The swelling over the gum could be because of the gum infection secondary to the deposits, or it can be because of the abscess or pus formation, or it can be because of tooth infection. If it is gum or tooth infection You can take a course of antibiotics and analgesics like amoxicillin 500 mg and metronidazole 400 mg TID for 5 days(if you are not allergic).  If it is gum infection then get your teeth cleaned once and maintain the oral hygiene. I hope my answer will help you, take care.