No, Hermione Granger did not wear fake teeth in the Harry Potter series.
Hermione's appearance is described in detail in the books and depicted in the films. She is known for her bushy brown hair and intelligent, kind eyes, but her teeth are never mentioned as being anything other than normal.
While there are many fans who have drawn fan art depicting Hermione with fake teeth, this is a creative interpretation and not based on the original source material.
The idea of Hermione wearing fake teeth likely stems from a misunderstanding or a joke among fans. However, it is important to rely on the original source material for accurate information about the characters.
