According to the American Dental Association, you should brush your teeth twice a day. Brushing your teeth helps to remove plaque which causes tooth decay and can lead to gum disease.
Always use a soft bristled toothbrush with a toothpaste that contains fluoride. Make sure that the toothbrush fits inside of your mouth so that you can easily reach all areas. When brushing, use gentle back and forth strokes, brushing all sides of the teeth. Always brush your tongue to remove any bacteria and keep your breath fresh.