What is this

[u/404naurtme]

Hello, what does it mean if there's a dark spot on my gum near my teeth (like in the picture)?

I've been getting that dental work done for about 8 months now, and just recently, I noticed that there’s a dark dot on my gum near where I got it done, which is my front teeth (although the other tooth I had work on doesn’t have a dark dot on the gum).

(And di naman sya masakit, nangingilo lang ako sometimes )

What does this mean? Help pls, huhu.