PFM Non-Precious Ni-Cr

タイトルまたは説明

Features: (1) A fixed restoration, easy to use, no foreign body sensation (2)Taken as real color and physical form, it can be able to meet both the aesthetic and functional needs to the maximum extent. (3)High strength, economical and practical (4) Using ceramic alloy from the United States, porcelain powder from Japan and Germany, fine processed (5) The bottom of the metal is base metal, corrosion resistance is poor, so the gingival margin may appear black after a long time wear. This can be compensated by making porcelain butt margin, gold-plated means to a certain extent. Instructions:       PFM Non-Precious Ni-Cr is the most widely used porcelain teeth and has widespread use in clinical practice in China due to its low price. But it goes without saying that it does harm to the health of human body. In Japan, Germany and other countries, Ni-Cr alloy in dentistry is banned, because the Ni-Cr alloy may cause patients with cancer. And some poor quality Ni-Cr alloy also contains a carcinogenic effect of beryllium, ISO standards require dental beryllium alloy content should be no more than 0.*2%. In some countries, Dental Association has proposed not to adopt the alloy containing beryllium because beryllium ions has a high allergenicity, it can precipitate in bones and lungs and its dust are also hazardous to the dental technicians