Yes! The condition of the teeth can be used to estimate the age of a bison. Like other ungulates, bison have a specific pattern of tooth eruption and wear that can be used to determine their age within a certain range.
In young bison, the milk teeth are present until they are about two years old, at which point they are replaced by permanent teeth. The age of a bison can be estimated by the presence or absence of milk teeth and the degree of wear on the permanent teeth.
For example, in a bison that is between two and four years old, the permanent incisors will start to show some wear, and the molars will have a distinct pattern of ridges and cusps.
As the bison ages, the teeth will continue to wear down, and the ridges and cusps on the molars will become smoother and less distinct. By examining the wear and condition of the teeth, it is possible to estimate the age of a bison within a few years, although this method of age estimation becomes less accurate in older animals, as the teeth can become more variable in their wear and condition.