As far as the dental work done, they usually get them started about 4 to 6 years. They need to start getting the wolf teeth filed when it starts interrupting their eating. What happens is that the teeth get long and keep the molars from meeting so they can't grind up their food, or sometimes they can pinch the inside of the cheek when they bite down. Once you get a mini just have someone in the barn to give you a quick look at what a horse looks like when they need to be floated, a file used on the wolf teeth. A picture is worth a thousand words, but seeing it in real life is priceless LOL.