I'm having braces for 3years+++ now in govt clinic and last few months i realized that my gum shrunk.

I didn't noticed it at first until the black triangle getting bigger at the bottom front teeth. I didn't have any treatment still until now.

And now i realized the upper front teeth is also getting a small hole.

It will be very obvious if the hole getting bigger and i can't have a pretty smile anymore...

Questions:
Is it because of the braces that causes the gum to shrink or because i had not done any scaling after having braces...?

Can i go to other private clinic to do scaling? Because the govt doctor didn't seem to care at all...

Will my gums grow back after scaling?

What else can i do other than scaling to get my gums to grow back?

Hope to get your reply soon. Thanks!!