What actually works

I’ll be blunt: you can’t “naturally repair” a dental cavity at home—lemon slices on your toes won’t fix tooth decay either. Cavities are permanent damage to the tooth structure, and once a hole forms, it needs professional treatment from a dentist.

That said, you can support your teeth and slow early-stage damage (before it becomes a true cavity) with good habits. Here’s a realistic, safe approach you can follow.