What is cavity?

A cavity is like a tiny hole that forms inside your teeth when they get weak from something sweet.

Imagine you have a chocolate bar, it's solid and strong. But if you eat too much candy, especially sugary ones, the sugar can make your teeth feel tired, just like how eating too many chocolates makes you feel sleepy. Over time, this tiredness turns into a hole in your tooth.

How It Happens

Your teeth are covered with something called plaque, which is like a sticky layer that loves to hang out on your teeth. When you eat sugar, the plaque gets excited and starts eating the outside of your tooth, kind of like how you might nibble on a cookie until it’s gone.

If this happens too much, the inside part of your tooth, called the dentine, can’t hold up anymore and gives way, making a cavity, that tiny hole we talked about earlier!

What It Feels Like

When you have a cavity, eating something cold or sweet might make your tooth feel yucky or even hurt, just like when you bite into an ice cream cone too fast!

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Examples

  1. A small hole starts forming in a child's tooth after eating too much candy.
  2. Your dentist points out that you have a cavity because of poor brushing habits.
  3. Imagine your tooth is like a cookie, a cavity is just the beginning of it crumbling.

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Categories: Physics · cavities· dental health· holes