Thank you so much for sharing your concern — I know how something that happened years ago can still affect how you feel today. A dent or depression in the forehead that formed after trauma, especially one that has been present for 17 years, is most likely due to soft-tissue loss or a subtle change in the underlying bone. Based on your description and photos, here are the most realistic and effective options: 1. Hyaluronic Acid Filler This is often the first-line treatment for longstanding depressions like this. It can gently lift the area and smooth the contour. Results are immediate and can last 12–18 months or longer in areas with little movement like the forehead. It’s minimally invasive with little downtime. This option gives the most natural correction while still maintaining your facial shape. 2. Fat Transfer (Autologous Fat Grafting) If you prefer something more long-term, fat transfer is another excellent option. Fat is taken from another part of your body (such as the flanks or abdomen) and injected into the dent. A portion of the fat survives permanently. It can provide a more lasting improvement than fillers. 3. If Bone Depression Is Involved If the indentation is deeper or partially from old bone injury, you may benefit from: Structural filler, Fat grafting, or In rare cases, a small surgical procedure to contour the area. Most dents from past trauma in cases like yours can be corrected beautifully without surgery, especially with fillers or fat grafting. My overall recommendation Starting with a small amount of filler is usually the most natural and least invasive option. It allows us to soften the dent, evaluate the improvement, and decide if anything more permanent is needed.