BTW, my dentist today said that we're only about 5-6 years away from dentists implanting a tooth bud in our gums to grow a new tooth. She said they've been doing it successfully with animals for a while. The technology comes from stem cell research. I didn't think to ask her where the tooth buds came from at the time. I started thinking about it later and my guess would be they take them out of aborted babies, but hopefully not.

https://docs.google.com/spreadsheet/ccc?...amp;usp=sharing