Teeth are the ONLY body part that cannot repair themselves.
Repairing means either regrowing what was lost or replacing it with scar tissue. Our teeth cannot do that.
Our brain for example will not regrow damaged brain cells but can repair an area by laying down other scar-type tissue .
Teeth will only continue to 'rot' in many cases from the bad germs that always live our mouth. There is no going backwards to repair itself or stop the destruction. It will keep going.
If you allow us to, we can try to find damage early before you ever sense it has started, and repair it early. That means less damage to the original tooth body part, less time, less money, longer lasting repair, less chances of pain.
Managing your mouth is a lot Like owning a car---find damage early, and with regular maintenance and repair...the results will mean much less costs in the long run.