Adults can be successfully treated for underbite, but treatment often involves surgery. The treatment you'll need to correct your underbite depends on how severe it is. Braces. In mild cases of underbite, braces can help straighten your teeth and realign your jaw.

Is it necessary to fix an underbite?

Most people aren't born with perfectly aligned teeth. Usually, slightly misaligned teeth don't require any medical treatment. However, correcting an underbite, especially when it's severe, can have big benefits.

What happens if an underbite goes untreated?

If left untreated: Underbites usually result from either undergrowth of the upper jaw, overgrowth of the lower jaw, or both. If not corrected, teeth may not be able to function properly and can lead to painful TMJ/TMD issues.