Other than the Additional Tip: "use the toothpaste with Fluoride" (which I don't believe in. too much controversy about the type of Fluoride being used in tooth products), I find lots of solutions in this post for supporting healing cavities naturally.
The Oral Hygiene You Probably Aren't Doing, But Should »
The natural toothpaste recommended to assist with the remineralization process of healing cavities. Natural Toothpaste for Healing Cavities Adapted from The Wellness Mama’s Squeezable Toothpaste Recipe - See article
How to heal cavities naturally. No more "drill it and fill it". 3 butter oil capsules every morning along with A daily teaspoon of fermented cod liver oil. I’ve always been pretty strict about a daily cod liver oil dose.