We just had our vet, Dr. Froenig, from the Animal Medical Center in Hutchinson, MN come out and do his annual checkup of our farm animals. Sioux, our mare, needed her teeth "floated". Horse teeth grow throughout their lives, and over time, they will sometimes end up with "points", which are sharp spots on their teeth where they didn't wear as fast as other parts of their teeth. These points must be filed down from time to time so they don't cause problems. Traditionally, they were filed with a special type of a rasp, called a float. Our vet prefers to use a power float. He also sedates our horses so that they don't feel any pain while this procedure is being done. It looks positively barbaric, but after being sedated, Sioux just quietly stood there while he ground away at those teeth.