The only way I know of other than fillers is get your ole lady's Iron, set it on steam. Get you an Cotton wash cloth or towel and wet ( damp is only needed not dripping wet). Lay the cloth over the dinted area and steam it with the iron. Make sure you dont scorch the finish or topcoat by laying the iron on and leaving in one place.
As long as your dent is not "creased" or you see broken pieces of wood grain, they will lift out. If it is you need some good wood filler and some time
Oh and how did you do it