(Concern) How about lip fillers?

I had some of my front teeth extracted and underwent dental treatment to grind them down.

The doctor did mention that the shape of my lips might change differently than before, so I was expecting it.

And now, after nearly half a year of treatment, I definitely feel that my lower lip looks somewhat thinner!

When I asked why, they said that I originally had protruding teeth, and as they were corrected, the shape of my lips changed, which is why it happened.

Can we create a slightly fuller lower lip through lip fillers in this case?