Well, I can't tell you what swollen gums means in relation to the MC, but I used to work for a dentist and swollen gums is usually the beginning signs of something worse - I would suggest you go to the dentist and ask, first of all. It could be a buildup of plaque or calculus right under the gum line, and proper brushing and flossing will help take care of it. Are your gums bleeding? If so, you definitely need to take better care of your teeth and see your dentist. If plaque is the culprit here, maybe you can try using those sonic toothbrushes, I love mine! Try brushing and flossing carefully (not too hard) and if the swelling persists after a few days, see your dentist!