The better question is how often should horses have a complete oral exam? The answer is at least once a year in horses between the ages of 5-20 and twice a year for other ages. Young horses have a lot of changes in their mouth in the first five years and they transition from baby teeth to having their adult teeth. Older horses can have a lot of changes as they begin to use the reserve crown, which has a different shape. There are also other problems, such as periodontal (gum) disease or uneven wear to the surfaces of the teeth that can’t be examined without the horse being sedated and an oral speculum in place. Catching these issues when they are slight can prevent serious problems from developing and goes a long way towards extending the life of your horse’s teeth, and therefore your horse’s life.