The first place we process food is the mouth. There, we use our teeth to cut up food into swallowable pieces.

The milk teeth or baby teeth are the first teeth that a human develops. There are usually 20 of these teeth.

The baby teeth are replaced by a set of permanent teeth between the ages of 6 and 13. 

The front teeth cut up the food we eat into manageable pieces. The teeth in the back of the mouth chew and process food into even smaller pieces.

The teeth are connected to the jaw with their long roots. The surface of the teeth is protected by a layer of durable enamel. It protects the dentines, which are the actual bony parts of teeth. 

Eating too much sugar is bad for your teeth. It feeds the bacteria that live in your mouth and wear down your teeth.

Brushing your teeth regularly is a good way to take care of your teeth. Eating a xylitol-rich chewing gum also helps.