It's funny how we have brain surgeons and rocket science, yet our dentistry is so unbelievably barbaric.
How else would you go about removing something like teeth or working on them?
I know very little in dentistry, but I wouldn't hesitate to say were probably a fair way through all the development in it that we can possibly have. There are probably better techniques, and tools and chemicals and procedures that could be invented/discovered, but I don't think you can change much in the way of removing something like a tooth.
Plus, if all else fails in dentistry, atleast you can say "forget it" and wear a denture or fake tooth instead. A reasonably amount of it is all just aesthetic.