An amalgam filling is one of the oldest restorations for cavities in teeth caused by tooth decay. Restorations with this material appeared at the end of the 17th century and were modified at the beginning of the 20th.
As mentioned, amalgam filling restorations are characterized by high durability. If you have restorations with this material, as with others, it is advisable to make regular visits to your dentist to check the condition of the restorations.