What can be done to fix an indent in the bridge of my nose after rhinoplasty? (photos)

Fixing a dent on the side of the nose: A dent such as yours on the side of the nose in this location can be caused by an inward shift of the upper lateral Cartlidge or by a deviation of the nasal septum. In either event the simplest and most predictable way to fix this is to place a small Cartlidge onlay graft. Some surgeons use fillers but these can have rare but serious complications.I have used fat injection in the past for small defects, and this has worked well. But In my opinion,the simplest and safest and most predictable correction is with a small onlay graft of Cartlidge.

Hi and welcome to our forum!
From your photo, you appear to be exhibiting an in-fracture deformity of the right nasal bone. This can be corrected with a secondary rhinoplasty to adjust the positioning. In some individuals, an onlay graft can be placed to improve contour.
Visit a board certified plastic surgeon for evaluation and discussion.
Best wishes...