What is that goo? Whether you need a new denture, braces, or a single inlay restoration, you'll encounter the "goo" dentists use to make an impression - the first step to a perfect likeness of your mouth. In effect, the material you bite into registers a "negative" image, like a photograph. To make a positive model, a plaster-like "stone" is poured into the impression and allowed to set. And there [...]