A hinge for assembling a door on a piece of furniture comprises a first hinge element fastenable to a fixed part of the piece of furniture, a second hinge element fixable to a door of the piece of furniture and swingably connected to the first hinge element, and at least one spring element for generating a force in the opening direction for the door at least near the closing position of the door; the at least one spring opening element is housed in an opening device disposed in or on one of the first and second hinge elements, wherein the opening device is conformed and arranged for exerting said opening force directly or indirectly on the other of said first and second hinge elements.