Braces are the best way to correct the position of teeth.  
I've never had them but my brother did. He also had to have a palate expander to help shape his teeth.
Are they painful to have?  Was that palate expander painful?
he didn't seem to be in too much pain. I'd imagine it's been made to be as painless as possible since it's such a common procedure.
How long did your brother wear the braces?
Dental braces
Dental braces (also known as braces, orthodontic cases, or cases) are devices used in orthodontics that align and straighten teeth and help position them with regard to a person's bite, while also aiming to improve dental health. Braces also fix gaps. They are often used to correct underbites, as well as malocclusions, overbites, open bites, deep bites, cross bites, crooked teeth, and various other flaws of the teeth and jaw. Braces can be either cosmetic or structural. Dental braces are
so that orthodontists can fit a tooth brace or molar band in between them or fit an expander with rubber rings.
Purpose.
Spacers are usually used to put spaces in between teeth before braces are established. It can be agitating or painful, but patients are often warned not to pick at them or they will fall out. They are usually rubber, but sometimes they can be metal. They can be used when a patient's teeth are too close together. Although they are sometimes very painful, they are usually