This kind of shark tooth does exist in real life. Someone took photos of the same tooth on the Internet. The shark teeth mentioned here do not refer to the teeth of marine creatures like sharks. But to show the cuteness of the characters, people's teeth are designed into sawtooth shapes, which look a bit like shark's teeth, so this expression is called shark's teeth. Shark teeth are real, because someone took a real photo of their teeth on the internet, and it is like this.

Shark's teeth are used to show the cuteness of the character in animation. Shark teeth are a very common form of expression in animation. Many characters' teeth are like this. On the one hand, they show the cuteness of the characters, on the other hand, they also show the sharpness of their teeth. More often, they are used to show some fierce but cute boys.

Before, some netizens in Japan exposed a photo of his teeth on the Internet, which was exactly the same as the shark teeth in the animation. That's just a realistic animation, so it can also prove that shark teeth really exist in real life.

Shark teeth have no effect on health. Most people's teeth are square, while sharks' teeth are triangular, so they look like sawtooth, and the upper and lower teeth can be perfectly matched, which is rare in humans. The process of human development is basically the same. Generally, unique characters represent some discomfort or diseases in the body, but shark teeth have no effect on the body, but the shapes brought about by the occlusion of teeth during development are different.