Wisdom teeth are black on the inside when they are chewed up. Consider the presence of caries. Because wisdom teeth grow in the innermost, wisdom teeth development process may produce blind pockets, blind pockets are more prone to accumulation of food debris, if not cleaned properly may lead to bacterial invasion, tooth decay, so may appear wisdom teeth caries symptoms. At the same time, it may also induce wisdom tooth pulpitis, wisdom tooth periapical inflammation and other diseases. Clinically, this situation requires active medical treatment to understand the severity of caries, if the caries is not serious, you can choose to carry out filling treatment. If the caries is not serious, filling treatment can be chosen. If the caries is more serious, and pain and other discomforts have occurred, it is best to consult a doctor in time and have the wisdom teeth extracted.