Powder or spray? - An anachronistic question concerning "as well as" or else: Why do it at all? Twenty-one years of our own experience with the Cerec system make us think. Much has developed further, some things have been revolutionized, new dimensions have been opened up, and yet some things remain almost unchanged. The camera - previously only slightly modified - represents in its current form a new generation of optical measuring systems, as can be gathered from other articles. But what about powdering? Where do we stand today?