Amalgam

特許 係属中 In dentistry, amalgam is an alloy of mercury with various metals used for dental fillings. It commonly consists of mercury (50%), silver (~22–32% ), tin (~14%), copper (~8%), and other trace metals.[1][2] Dental amalgams were first documented in a Tang Dynasty medical text written by Su Kung in 659, and appeared in Germany in 1528.[3][4] In the 1800s, amalgam became the dental restorative material of choice due to its low cost, ease of application, strength, and durability.