Floating is a process in which a large file (float) is used to file down both any sharp "points" and any other abnormal dental growth that may cause the animal oral discomfort or make chewing of feed inefficient. The frequency with which floating is necessary varies greatly from horse to horse. Some animals have better jaw alignment and seemingly slower-growing teeth and may require floating only once every several years. Others may require floating every few months.

Indications that a horse may need to have his teeth worked on are grain falling from the mouth while eating or whole grain being passed in significant amounts in the manure. Painful teeth or gums may also cause problems when the horse is bitted during work. You can check for the presence of "points" on the teeth by running your fingers inside the mouth along the inside of the cheek to feel the edges of the upper teeth. Be extremely careful if you decide to try this (I prefer to leave this to the vet); points can be razor sharp and easily tear your fingers to shreds.