human
Is there a way to tell how old a person is by looking at their teeth?
assistant
Yes, you can tell how old someone is by looking at their teeth. Teeth are made up of enamel and dentin. Enamel is the hard outer layer that protects the tooth from damage. Dentin is the softer inner core of the tooth. As people age, the enamel wears away faster than the dentin, so older people tend to have more visible wear on their teeth.