What's Inside a Tooth?

Well if you asked my four year old before today he would have said "sugar bugs". That's what the Dentist tells the kids. There are sugar bugs inside your mouth and you need to brush your teeth to get them out.

Today we learned that your mouth is full of bacteria. When the bacteria sticks to your teeth it forms a film called plaque - usually near the gum line or between the teeth. The bacteria feeds off the sugar in your mouth and multiplies. As bacteria multiplies it gives off acids that eat the enamel and forms holes called cavities.

We made mini layer diagrams (boy do I love these!) and a tooth movie..... the boys also colored a mini maze identifying the different types of teeth.



all three boys' layer diagrams of a tooth






some close-ups of the layer diagram..... layer 1. enamel, layer 2. pulp, layer 3. dentin, layer 4. gum and bone




Tooth maze and a close-up. Each boy did one of their own. Located the molars, premolars, canine and incisers.



This is how we put them in the binder.... a little bit of double sided tape, some card stock (I got 1,000 sheets of this hidious lime green card stock at an auction for $1 so you'll see a lot of it!)

We will be doing some more work on teeth tomorrow and possbily the next day too lol! I always plan a whole bunch of things to cram into our time and well, not all of it seems to get done in between water breaks, then the inevitibile washroom break, then of course they need to pet the kitty on the way by and oh wait she needs a treat...... and so our day goes.

Off to brush my teeth!