

Yes they do. Plaque buildup leads to gingivitis and cavities. It is in one’s best interest to reduce plaque not because it makes your teeth look good, but because it will help you not have receding gums when you are older which leads to exposed roots, root canals, tooth replacements, etc…
https://pmc.ncbi.nlm.nih.gov/articles/PMC3652371/
Here is a long term study
https://pmc.ncbi.nlm.nih.gov/articles/PMC6619286/
Both probing depth and clinical detachment loss of the teeth were improved with an electric toothbrush.
Lego is actually one of the very few companies that isn’t batshit crazy over video game IP. (Real life Lego clones are probably different though).
They even gave a shout out to Manic Miners (a rock raiders fan remake) on the official podcast and haven’t done anything to take it down. I can’t remember if they officially said they won’t do anything also