BRUSHING

Regular brushing prevents tooth decay by removing plaque and bacteria. You should brush at least twice a day -- after breakfast and before bedtime. Plaque and bacteria begin attacking your teeth minutes after you stop eating, so you should brush after every meal if possible. 

Make sure your toothbrush has soft bristles, and that you change your toothbrush every 3 months. You should spend at least 3 minutes every time you brush. Using a timer or listening to your favorite song may help you keep the proper time while brushing.