I have a very good equine dentist. She said, young horses usually should be done every six months because their teeth will grow faster than the older horses. When I had Flash and Breaker done, Flash's teeth were really bad ( he is a 4 year old) and Breaker's teeth were not bad at all (he is 18). I check my horses with my hands. If they feel pointed to me, I get them done. Also, if they drop feed or have other problems or the vet says to have them checked, I do it.
Pam, it would not let me do the poll.