Do all British people have bad teeth. Or does the U.S just have better dental care?

My teeth are great by the way and I'm British.
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I'm an American, but when I visited the UK I noticed that the British had better teeth than I expected! I'd guess that Americans have more orthodontic work, as I seemed to see more British people around with overbites, but I didn't notice the kind of discolored or rotten-looking teeth that Americans stereotypically associate with the British. Perhaps things were worse in the UK in the past. However, if you compare British and American TV shows and movies there's a big difference in how the actors' teeth look. Hollywood actors get a lot of purely cosmetic dental work so they'll have very white, even teeth. For whatever reason this doesn't seem to be as big a concern for British actors. I've sometimes heard Americans say that everyone in British TV shows seems to have horrible teeth, but they're actually quite ordinary looking teeth that really only seem bad in comparison to the "perfect" Hollywood teeth we're used to seeing on TV.
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