Troublesome Teeth at Irchester

Last week, a group of year 4 pupils came into the lab to do some interesting experiments about how your troublesome teeth grow. Several children had asked questions about how and when their teeth grew: Ellie May asked “How long does it take for a tooth to grow?” Hughie wanted to know “Where do teeth come from?” and Gracie asked “When do babies get their teeth?”

Miss Draper showed the group some cool photos, which were of a young child’s skull which had the front of the jaw sawed off so you can see the 2 sets of teeth. This was to show how the teeth grow inside the jaw bone, so even before your big teeth start to grow out, they are already there inside your jaw!

skull 1

After that, the students created their own jaws out of plasticine and the teeth were small chunks of lolly pop sticks. As a newborn baby, they put the baby teeth inside the jaw where they couldn’t be seen, then slowly they pushed the teeth up and put adult teeth inside the jaw, just like it happened in us when we were about 1 year old!   Then they pushed the adult teeth up so the baby teeth wobbled and fell out so the adult teeth could come out, just like is happening to us in school now between the ages of 6 and 15. Once all the adult teeth had grown, they noticed that lots of the teeth were wonky, so used rubber bands to put braces on the teeth to straighten them up!img_20160127_121722

Facts alert!!

Did you know that 3 months before you are born you baby teeth start to grow in your jaw, even though the don’t come through the gum until you are about 1 year old.

Even though your adult teeth may not have come through yet, they start to grow hidden inside your jaw as soon as you are born, but don’t get pushed up through the gum until you are about 6.



About lab13network

Lab_13 is a space in a school managed by pupils for pupils to conduct their own research and experiments driven by their curiosity, imagination and enthusiasm, and under the watchful supervision of a Scientist in Residence (not a teacher!!).
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