For people who have previously had braces, it is important to maintain good oral hygiene by flossing regularly to prevent swollen gums. Retainers that fit improperly can also cause swollen gums.

Previous studies have shown a link between oral health, oral infection and damage to white matter and small blood vessels in the brain, as well as to a buildup of plaque in the arteries that supply ...

If plaque is not removed from the teeth every day by brushing and flossing, it will thicken and harden into tartar. A buildup of tartar then inflames the gums, potentially causing them to bleed.