Goal: How can you restore and repair small dents in wood (Like a wood floor)?

Which of the following methods is more reasonable for accomplishing this goal?
Put a little water in the dent, then lay a moist towel over the it then heat up your iron (like clothing iron) and then move it over the towel in circles, pressing down on it for a few minutes. The heat and water should rehydrate the wood, allowing it to puff back up.