Why not fix the cavity?

How come our body can repair severe injuries but can't fix a tooth cavity on its own?

Getting teeth fixed

People with a lot of money who still don't fix their teeth.

Tooth cavities

How can such a small thing like a tooth hurt so much when you have a cavity?

Dental floss

Sometimes this gets stuck in between teeth because of a filling. Try getting it out when this happens without taking the filling out with it.

Sensitive teeth

Teeth that are sensitive to hot or cold liquids.

Teeth get yellow

Teeth seem to stain or get a yellow color over time. Teeth are a hassle to keep the same color it seems your entire life.