So, why do we lose our baby teeth anyway? I mean, they seem fine for a few years, then they just fall out! Why can’t we just keep the same ones forever? How does this whole tooth-replacement process work?
In: Biology
We lose the baby teeth for two reasons
1. We are growing, which includes our jawbones. a new set of teeth that fit better serve us
2. Teeth cannot repair major damage. We have softer foods and brushing with fluoride toothpaste now to help, but that second set of teeth is very important to keep us healthy since teeth start to wear down or get cavities from plaque by the time we reach adults, and then our adult teeth are designed to keep us going up through our main reproductive years.
even then we are very primitive compared to some animals. quite a few animals regularly shed old teeth and grow new ones, and the front incisors of many rodents continue to grow outwards because they constantly gnaw on hard materials.
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