The dental wedge has an elongated body extending from an outer end to an opposite inner end. The body includes a longitudinal intermediate wall, a longitudinal first side wall connected to the intermediate wall, and a longitudinal second side wall connected to the intermediate wall. The first side wall and the second side wall each flare away from the intermediate wall such that a first distal end of the first side wall and a second distal end of the second side wall are spaced apart creating an inverted generally V-shaped transverse section for the body. The body has a top surface and a bottom surface formed by the intermediate wall, the first side wall and the second side wall. The intermediate wall includes a region of increased flexibility compared to each of the first side wall and the second side wall.