They are necessary to help your teeth 'settle' into their new position after the permanent braces have been removed. This will depend on why you need to have braces. If your mouth is overcrowded ...

Many people dream of having a straighter smile but worry about the discomfort and inconvenience of traditional metal braces.

“Good dental health is important before, during and after ortho treatment ... In the first phase, baby teeth may be removed to make room for permanent teeth, or braces may be used to straighten ...

If you wear wire braces ... for two minutes after you eat and before you go to sleep. If you cannot brush, at least rinse your mouth and teeth thoroughly with fresh water to remove residue.