I've done this with my wisdom teeth when they needed to come out. I used this company: ndpl.net. There were a few competitors but it's been years since I looked into it. My stem cells are sitting in a lab, frozen, awaiting my command to send them anywhere in the world for medical treatment.
I still have some wisdom teeth way up and back. They were too far back to conveniently remove. Do they still have fetal stem-cells in them that can be harvested, if need be?
From what I've read, there's a tradeoff with time prior to removal however. The earlier in your life you take them out and freeze them, the higher their regeneration factor is. The DPSC (Dental Pulp Stem Cells) should always be there as long as the tooth is alive.
We're expecting a baby, and in hospital waiting rooms we've been approached by a few different companies hawking cord-blood storage (in Singapore).
After some brief research I concluded it was probably a waste of money for us as donors, but it's probably valuable to donate for someone else. I haven't yet asked our obstetrician whether that's an option.
with companies like mine haha AnjaHealth.com - we send parents a kit, they can collect, we pick it up and bring it to a lab, and parents can access it later in life