Sometimes teeth do not greow in correctly. They can grow in crooked or in the wrong place.
It isn't a problem if they are baby teeth but your adult teeth have to be in the correct place because you will have them forever!

It is important to fix the problem as soon as possible. Braces help put your teeth in the right place!
Normally, after having braces, you have to wear some type of retainer to keep your teeth in place. Your teeth are always moving!