GROWING UP IN South Dakota, Morgan never felt pretty enough. As a biracial kid in the mostly white Sioux Falls, she worried about her hair, her nose, her weight. But she didn’t think much about her teeth, which were relatively straight and white. At 13, she got braces to correct a slight overbite, and when they came off, she loved her smile. But in her early 20s, she started comparing her teeth to women’s she saw on Instagram and The Real Housewives, and she began to fixate on minor flaws. Her bottom incisors, she could now see, were too round, and there was a tiny gap forming between them. Despite her braces, her top teeth were slightly crooked.
In 2017, at 22, Morgan moved to Atlanta. She worked for an…