IME, not every horse is lucky enough to have an owner who is concerned about their teeth and many suffer in silence. These lovely animals do so much for us, the least we could do is get them checked twice a year.
historically I have used a specialist EDT, but he has not been well recently, and has recommended a vet that is also greeat with teeth, as not all vets are. My orse all go better when they are happy in their mouths.