No. The very meaning of the word "amalgam" means a combination of different substances.

In 1833 the Crawcour brothers, two Frenchmen, brought amalgam to the United States, and in 1844 it was reported that fifty percent of all dental restorations placed in upstate New York consisted of amalgam.[5] However, at that point the use of dental amalgam was declared to be malpractice, and the American Society of Dental Surgeons (ASDS), the only US dental association at the time, forced all of its members to sign a pledge to abstain from using the mercury fillings.[6] This was the beginning of what are known as the first dental amalgam war.[7] - excerpt wikipedia.

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Silver amalgam for dental fillings is made from mercury and silver. The amalgam used for the reflective properties of a mirror is made from silver and tin.

One of them is amalgam. In dentistry, amalgam is an alloy of mercury with various metals used for dental fillings, most commonly silver-amalgam.