Who else still remembers that strange thrill of losing your tooth when you were a child? On the one hand, we had the distressing feeling of seeing blood pop out from our gums.

But we also knew something exciting was going to happen when we put the tooth under our pillows. And if you're lucky, in the following morning, the tooth was gone, and some money magically appeared.

If you have kids of your own, you might have taken the most crucial role of the "tooth fairy" and slipped a dollar or two under your kids' pillows to celebrate the new stage in their life.

What do you do once you swap the tooth under the pillow with some money? Some people would toss it away. After all, what can a tooth do to you?

However, other parents would keep them as sentimental keepsakes.

As exciting as the "tooth fairy" can be to kids, a study by dentists has shown that there're good reasons to keep your children's baby teeth.

Before you throw away your kids' baby teeth, you might want to consider this fact. In a 2003 research, experts discovered that a baby tooth is a rich source of stem cells.

What makes this biological component special? Stem cells are used in laboratories to produce multiple kinds of cells that can potentially treat chronic illnesses such as cancer and diabetes.

When you store the fallen baby teeth of your children, you could help in a lifesaving research project needing stem cells and possibly end up saving your own child's life.

Losing a baby tooth, also known as a Deciduous tooth, shouldn't be forgotten. According to the Children's Hospital of Wisconsin, most kids will lose their first baby tooth when they're around six years old and continue losing them until the age of 12.

The "tooth fairy" tradition dates back hundreds of years. According to some beliefs, baby teeth are considered to be "good luck" charms.

Baby teeth traditions are diverse in many cultures. Some communities toss the tooth on the ground or sky, while others bury it under the soil.

For baby teeth to be useful in medical research, you need to store them properly to avoid grading. And the most recommended way is to keep them in a box or a jar.

Today, there're services such as Store-A-Tooth that'll keep the tooth safe for you. You can arrange a contract with your dentist for your kids' baby teeth safekeeping and retrieval when a need arises.