If you take a close look at Peter Ostrum Teeth in Willy Wonka & the Chocolate Factory, you may see that he has quite developed front teeth, but the back teeth are underdeveloped.

Moreover, he has quite shart-like small teeth in the upper left side of his teeth.

Peter Ostrum and the girl who played the spoilt gum-chewing brat Violet Beauregard also faced a few tooth problems.

Nickerson claims that forty years after she inflated like a blueberry in front of our eyes, she had 13 cavities in her teeth due to all the gum she was forced to consume.

‘t was Bazooka gum since they didn’t have sugarless gum back then…. 13 cavities she had she told TMZ.