Dental health says a LOT about the health of a person or animal, so it's highly important to maintaining their care. Even if they don't perform dentals themselves, they should definitely be checking the teeth at the annual exam to let owners know if there is an issue (gingivitis, abscess, broken tooth, etc).

Working on teeth is by far the main thing that pays the bills in the vet clinic I work at, lol. It was insane to me when I first got into the field. My previous vets didn't even do dentals at all. I honestly cannot see how my clinic would stay open without dental surgery, normal exams and the like just aren't enough to keep the doors open and pay everyone's salary (even with a small team), and there's not as many surgeries otherwise. We're a normal small clinic, not like an emergency one, but it was really eye-opening to me.

We have 6 surgery slots a week (2/day on Tues/Wed/Thurs) and 4-6 of them are -always- dental care of some sort. Maybe a lump removal or a neuter/spay thrown in but most of the time it's dental surgery.

We do dental x-rays and pictures at multiple steps, trim nails while they're under, they get ultrasonic scaling and hand scaling, polishing, and we apply Sanos (a type of coat protectant that lasts 6-12 months to prevent plaque build up).

One of the weirdest aspects of my job is washing the teeth that have been removed to show the owner (both for educational and legal purposes to show we actually removed a tooth and aren't just charging them for nothing).