Always spend two to three minutes brushing your teeth. It takes that long to get rid of the bacteria that destroy tooth enamel. Do not brush too hard. It takes very little pressure to remove bacteria and plaque. Floss at least once a day. Flossing is the only way to get bacteria from between your teeth.
Watch the sugar you eat. There is sugar in candy, fruits, crackers and chips. These are the foods that the bacteria in your mouth like best. Be mindful of foods like raisins and peanut butter that stick to your teeth. They can provide a constant supply for the bacteria eating into your teeth. Try to minimize the times during the day when sweet items are eaten and brush your teeth afterwards.
If you cannot brush after a meal, rinse your mouth with water - which can help to remove food from your teeth. Chewing sugarless gum after a meal can also help. Chewing xylitol gums helps as a natural plaque-fighting substance. And do not forget your regular dental visits. Good dental habits will go a long way toward a no-cavity visit.