However, unless a cavity is in the beginning stages of formation, it cannot heal naturally, especially for one that has broken through the dentin. When you start feeling pain in the localized tooth, it's a sign that the damage is too significant, and you should see a dentist for professional cavity treatment.

Can a cavity go away on its own?

Cavities don't just go away on their own. If you ignore a cavity, it will continue to grow in size. One bad cavity could lead to a second cavity before long. Decay of the tooth will widen and deepen; this will make you more prone to brittle teeth leaving them to the possibility of cracking and breaking.

How can I heal a cavity without going to the dentist?