Orthodontics is the practice of straightening teeth. It is practiced by specialists called "Orthodontists". Their job is to fit you with the infamous braces as well as any appliance that you may need.
Jazmine: "Have you seen Samantha today?" "She's now a victim of Orthodontics."
Keisha: "Yes, I've seen her mouth." "Such a shame, she was a beautiful person." "Now she will lose everything socially related."