If you have no issues like sensitivity or cavities, imo I don't think there's a need to spend time optimizing the type of toothpaste. Went down that rabbit hole once reading research papers of tested and optimum fluoride concentration for remineralization, no idea why I did that considering I just use the toothpaste my partner gets and I haven't had a cavity in a decade probably
Ah, the non-problems of young people! What you say is true, but effective repair tooth pastes might be quite interesting for people that already have thin enamel, worn away enamel, crowns, reduced gums, etc.
I hope the effect size is big enough for one of the substances mentioned here …
I'd appreciate that too. My dentist recommended me to use Duraphat, a 9 euro per 50 gram toothpaste.