We have a dent in our wonderful hickory hardwood floor, caused by a picture frame that fell, corner down. It has a matte finish. Can you advise about that internet-suggested trick, of putting a drop of water in the dent, then using an iron and damp cloth, to help expand the wood in the dent. Will that work? I see this dent every day because of its location and the angle of the sunlight, and would like to fix it. Thank you.