The stem cells from baby teeth can actually be used to repair the damaged cells in the mouth. These stem cells are classified among the most powerful in the human body because they can proliferate much faster.
There are a number of global services that can store your child’s baby tooth for a fee. If your child ever needs a bone marrow donor, this would eliminate that need.
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http://www.davidwolfe.com/doctors-urge-parents-save-kids-baby-teeth/