Dating back to 2003, zirconia, as a new material for denture restoration, began to be popular in the world market. In that year, the first zirconia block of dental Direkt, the predecessor of German de Jade all ceramic brand, entered the market and became one of the pioneers in the field of new dental materials and innovative materials. By 2020, up to 4.5 million dentures will be made with this brand of zirconia every year. The material base of Deyu zirconia is spenge of Bielefeld, Germany. Now the product has become the star brand of zirconia in Germany and the preferred brand of aesthetics and functional restoration.