How to Remove Cheek Indents Due to Piercings?

Cheek piercings can cause indentation when removed.  I would perform a scar revision procedure to remove the epithelialized tract and fix the scar.  There is a finite risk of fistula formation.

Though the holes in your cheek have closed, the indentations are a result of the natural healing process (contraction). Fillers are an option but would not be permanent. The area will be need to removed surgically and repaired in layers. Done properly, this will give an almost imperceptable scar. I would recommend you seek a surgeon with experience with facial anatomy. Best of luck to you