Bishoping is the act of changing the appearance of equine teeth to make the horse look younger.

This process can involve such processes as filing down the Galvayne’s Groove or changing the shape or length of the teeth, or using silver nitrate to artificially create cups.

This dishonest practice does not reverse other signs of age shown in enamel rings, the shape of the holes in the smooth-tabled incisors to make new cups which were then blackened with wearing surface or the angle of the incisors from the side.