Regarding the hadith:
Allah has cursed those women who practise tattooing and those who get themselves tattooed, and those who remove their face hairs, and those who create a space between their teeth artificially to look beautiful, and such women as change the features created by Allah.
Sahih al-Bukhari 5931
This hadith leads naturally to the question:
Question: Did women create a space between their teeth to look beautiful in the Prophet's time?
In today's culture, a space between teeth (or diastema) is sometimes "corrected" using braces. I.e., we do the opposite of what the hadith indicates was a thing at the time.