What at-home stuff can you do to maintain your teeth? Brushing and flossing twice a day just doesn't cut it. Brown stuff still eventually builds up around the edges and right above the gum line (although it does take quite a few years). Being obsessive about dental hygiene only delays the buildup and is not sustainable on its own. I may be able to afford dentist appointments now but by the way society is headed, that may not be the case 10 years from now or even next month.