When I need to steam a dent I like to sand the area a little to clean it up, then I cover the area with a wet towel for half an hour, this allows the wood to swell a little before steam is applied, let it set for 24 hours to dry. After the dent is raised I use 0000 steel wool over the whole stock and then apply finish, then I use the 0000 over the finish again to even the appearance.
good luck