ROCK HILL, South Carolina--While all-ceramic crowns are popular within the dental industry, many practitioners still place porcelain-fused-to-metal crowns. Before any ceramic is placed on metal, its surface must be conditioned by a laboratory technician to help guarantee an optimal retention. That's why KOMET USA offers DF Cutters, special tungsten carbide instruments designed for creating a defined roughness of precious and non-precious metal surfaces in PFM crowns. Because many PFM crowns are made with ceramic veneers, the metal's surface must be prepared to allow the ceramic to bond properly. DF Cutters are manufactured with a fine-diamond toothing that creates a special surface before applying any ceramic for prescribed PFMs. DF Cutters have pyramid-shaped cutting blades, designed for abrasive cutting and the controlled roughening of metal surfaces. DF Cutters are available in nine different shapes. For more information about KOMET USA, call (888) 566-3887 or visit www.komet-usa.com.To read more about KOMET USA, go to KOMET USA.To comment on this product, go to community.pennwelldentalgroup.com/.