Iqra4 months ago

Dental amalgam

Dental Amalgam, also known as Silver Filling material is a mixture of Mercury and Metal Alloy’s used to fill a hole in a tooth after decay has been removed by a dentist. Amalgam commonly consists of Mercury (50%), Silver (35%), Tin (13%), Copper (2%) and other trace metals like Zinc. Dental amalgams were first documented in a Tang Dynasty medical text written by Su Kung in 659 AD, and appeared in Germany around 1528. In the 1800s, amalgam became the dental restorative material of choice due to its low cost, ease of application, strength, and durability. Recently however, concern for appearance, environmental pollution, health, and the availability of improved, reliable, composite (white) filling materials have diminished its popularity.