In the fight against cavities, it is essential that you brush your teeth properly at least twice a day with a toothpaste containing fluoride.​ You can use a regular toothbrush or an electric toothbrush. Be sure to brush all sides of your teeth: front, back, and top. Brushing your teeth removes the plaque, but it will form again in a few hours, so you have to brush at least twice a day.

Fooen your teeth when you eat. If the debris is not removed, it can lead to cavities. Flossing or using an interdental cleaner every day is the best way to remove food debris from in between the teeth.

Proper nutrition plays an important role in good dental health.

Don't make a habit of having frequent sugary snacks, including hard candy and other snacks that contain sugar.

Many cavities can only be detected by a dentist or a dental X-ray. Visiting your dentist for regular check-ups and cleanings is a key factor in preventing cavities and staying on top of good oral hygiene. You may also want to discuss with your dentist whether you should use supplemental fluoride to strengthen your teeth. The dental hygienist can give you tips for brushing and flossing so you will know that you are doing it correctly​​

Dental sealants are a protective coating that is applied to the biting surfaces of the back teeth. The sealant protects the tooth from getting a cavity by shielding against bacteria and plaque. Sealants are more common in children because of the new growth of permanent teeth, however, sealants can benefit adults also.

There are several antimicrobial mouth rinses on the market that have been clinically proven to reduce plaque, such as Listerine or Crest Pro Health. Rinsing with one of these mouth rinses after brushing or eating can aid in cavity prevention.

Believe it or not, chewing certain sugarless gums can actually help to prevent cavities by increasing the flow of saliva in your mouth. In 2007, the American Dental Association awarded their Seal of Acceptance to Wrigley's Orbit, Eclipse, and Extra chewing gums for helping to prevent cavities. Look for the Seal of Acceptance on other sugar-free gum, including Bazooka Sugar-Free Bubble Gum. Now you have an excuse for blowing bubbles.