Teeth dreams are usually about youth or survival- after all, before technology those that lost their teeth could not eat and died- so teeth are pretty strong symbols, and even though in modern life no one dies from losing their teeth, the fear of losing them is a visceral, primordial fear of losing life, youth, and possibly looks.
So I would say that you received 'new teeth'- maybe this means that you are feeling rejuvenated by someone else or something else- after all, you said "why this was done to me".
It seems like a positive dream full of hope or health.