Dental insurance can be a thing here, but I don't think many people have it. You do have to pay a certain amount on the NHS, unless you are under 18 or pregnant, but the cost of a biannual checkup is fairly nominal. I like the way eye care is done - you are entitled to a free test if you are under 18 or over 60, but the range of spectacles available is pretty limited, so mostly you buy your frames and lenses.... it all seems to work out in the end. I keep getting texts from the optician telling me I'm overdue for an eye test, but one part of my face at once, I think!