Horses tend to create sharp points on the outside of the upper arcade of the cheek teeth and the inside of the lower arcade. Removal of those sharp points is called floating and may be done with power floats or hand held rasps (floats).  How often a horse needs to be floated depends on their anatomy and how/what they are fed.  We believe that for most horses floating with a power float while sedated gives the best results particularly with the teeth in the back of the mouth.  Horses have hypsodont teeth which means that their teeth erupt throughout life to compensate for wear.  There is a finite amount of reserve tooth so overly aggressive dental care may result in older horsesrunning out of tooth materialas they age.