Roach double ended, double duty dental instrument has one end designed to form a shelf on lingual bands and carving interproximal areas on bridges, and the other end carves full cast crowns. These are ideal for carving margins and interproximal areas of wax bridges. They come in variety of sizes and styles. Roach carver is double ended instrument used to cut, smooth and carve dental waxes. At first glance, it appears to look like a wax spatula. A closer look reveals a spear shaped blade at one end, with a deep welled, v small spoon at the other end. Both ends have very sharp edges. The deep welled end may also be used to carry melted wax.