Cavities can heal up and be reversed if the cavity isn't too severe.
Once the cavity becomes too severe then the cavity will have to be filled in by a dentist.
Oil pulling with coconut oil can help heal a cavity and even reverse the cavity as well as prevent further cavities from forming.
Oil pulling with coconut oil can also help prevent gum disease and tooth decay as well.
To oil pull with coconut oil take a teaspoon of coconut oil and swish it around in your mouth for a minimum of 5 minutes and be sure to pull the coconut oil through your teeth and then after 5 to 20 minutes of oil pulling spit the oil out.
Then immediately brush your teeth after oil pulling to get rid of the oil residue on your teeth and clean any bacteria out of your mouth.
Oil pulling once per day can help prevent further cavities, tooth decay and even gum disease.
You should still brush your teeth everyday after every meal to remove any food residue from your tooth as well.