After orthodontic treatment, I developed cheek depressions and developed a peanut-shaped face with more prominent cheekbones and chin. Sigh... I thought it was because I lost some weight because I ate less food during orthodontic treatment, but it turns out that having a peanut-shaped face is a typical side effect of orthodontic treatment. I think there are some side effects haha... But I'm more satisfied after correction, so I just live with it!