Contrasting points...

You can close your mouth., but can’t stop someone from looking at your head.

You can surgically replace all your teeth with perfect replicas and no one will be able to tell otherwise except in how perfect they are. The cost for this isn’t low, but nor is it unobtainable. I bet $10k in Eastern Europe gets you nice teeth for the rest of your life.

There is just no great option for hair. Even with infinite money like Musk or Bezos, you have plugs or nothing.

But... if this enamel deal helps you, I’m glad!