Are there foods that help prevent cavities?

Yes, there are. 1) Dairy foods such as cheese and milk supply calcium and neutralize acid in the mouth, which helps prevent cavities. 2) Fibrous vegetables and fruit such as apples, carrots, and celery have a cleansing effect, wiping the tooth surface as you chew. 3) Drinking water often increases saliva flow, which suppresses bacterial activity. Conversely, sticky and sugary foods such as caramel and dried fruit cling to the teeth for a long time and raise the risk of decay, so brush or rinse with water after eating them.