They ARE that bad. Anecdata perhaps, but come on - Americans really do have whiter teeth. At least the &quot;privileged class&quot; does. Downvote me to hell if you like still, I have lived both in UK and US for a decade and yes it is true, British teeth are nearly as bad as Japanese teeth (who don&#x27;t use any flouride in their toothpaste, and it shows by the age of 40 or 50)