(Concern) Should I get an implant?

I lost a tooth a long time ago.

Due to various circumstances, I was unable to receive treatment at that time.

They move as if they are filling in the empty spaces.

Now, many years have passed, and it feels like the gap has widened.

I can tell when I look in the mirror, but unless the other person looks closely, they probably won't notice.

I wonder if I should send this back to its original position now and place an implant in the empty space.

It's late, but if possible, I want to do it even now.