My upper nasal bone got dented. Now it has been 4 months post surgery for hump removing. Any suggestions? (photo)

I got this small dent on the upper side of my nose after 4 months since the surgery, I saw my doctor who asked me to wait for another 2 months before going ahead,he described the procedure as he will take a cartilage from some part of my nose and add it to the dented part but he told me it's not going to be an open rhinoplasty just a minor closed one with Local anesthesia & there won't be any wounds cast or recovery as I can leave after the surgery and practice my normal life is that possible?