So many adverts made by ‘western’ companies, especially anything related to toothpaste/other dental stuff, have the presenter smile with some uniform, white flat teeth. I feel like they look sort of uncanny, they just seem off-putting to me. Most people have decently flat teeth but they aren’t that fake-looking white. I have pointy canines/pre molars that definitely look completely different to the ‘perfect teeth’.
That’s why when I got dentures I picked a few shades darker than stark white. We Americans just have some obsession with bright white teeth. I think they look phony.