Polycarbonate Prefabricated Crown Starter KitPolycarbonate Prefabricated Crowns are made from polycarbonate resin with microglass fibers for short term adult anterior use. Contours and crimps similar to metal crowns to yield easy adaptation to margins Universal shade No. 62 can be adjusted using cements and liners for better esthetics Strong and durable formula A low cost alternative providing esthetic temporization for patients with economic considerations Crown set is packaged in a unique,