It is not possible to give a definitive answer to your question without an examination. It seems that the "dent" may actually be due to chronic folding of the tissues between your brows when you scowl despite your young age. Folds, creases, and dents due to scowling can be improved with Botox by relaxing the muscles temporarily. However, if the crease does not improve with Botox, then a person may need fillers to fill the groove or dent. It varies for each individual.
