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1. A child's jaw is smaller and requires smaller teeth. That's why when we are born and we start growing out teeth, those teeth are temporary and fall out later on.
2. People needed their teeth to live. Having two sets of teeth (and periodically growing more teeth, like molars and wisdom teeth) meant that even if the front teeth rotted away, the person would still be able to eat. Dentistry hasn't been around anywhere near as long as humans have.
Adah Doyle
Wiki User
∙ 14y agoYes, while it is rare, people have been known to develop and grow a second set of permanent teeth. The number and location of these varie greatly between cases. Soem only have one tooth, others grow an entire other set.
Wiki User
∙ 13y agoNo. We have two sets of teeth; the 20 juvenile teeth that grow in during infancy, and the 20 permanent teeth that grow in behind them as we mature, along with the 12 molars that come in at various ages, typically 6, 12, and 18.
Wiki User
∙ 15y agoif they want to!
Wiki User
∙ 14y agobecause god wanted it that way
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What is the number of the most people brushing their teeth in the same place at the same time?
hell most kids brush
How many sets of teeth do you have in a lifetime?
Dogs have two sets of teeth: puppy and adult. They start loosing their puppy teeth usually at around 3 months and finish losing them by five or six months, at which time they have all been replaced by adult teeth.
Why two places in different hemispheres have the same time?
the sun sets at the same time
Why could two places in different hemisphere have the same time?
the sun sets at the same time
Can a number be rational and irrational the same time?
No, they are disjoint sets.
How many teeths does an alligator have?
about 80. they lose them and grow them like crazy tho.
What time does the new moon set?
The new moon sets about the same time as the Sun does.
Can three teeth grow together?
teeth cant grow more than two at the same time
How do you burn calories while you brush your teeth?
walk around the house and brush your teeth at the same time
What is it called when two sets of lyrics are sung at the same time in a song?
Either a round or a duet.
What time does the new moon set in Indiana?
The new moon sets at the same time the Sun does.
How many teeth did an edmontosaurus have?
They had teeth that were constantly replacing used teeth. They had about 1,000 teeth. But not all at the same time! They probably could replace a tooth about 6 times.
