General Question

RedDeerGuy1's avatar

Why is gold bullion malleable while gold teeth crowns not?

Asked by RedDeerGuy1 (24945points) February 27th, 2022

Why can you can bite a piece of gold to check if it is authentic; While gold teeth are not affected by biting?

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4 Answers

elbanditoroso's avatar

The gold in a filling has been melted and mixed with a hardening mineral (palladium, tin, etc.) so it will last longer.

elbanditoroso (33550points)“Great Answer” (3points) Flag as…
Six's avatar

Don’t want thieves grabbing my teeth.

Six (948points)“Great Answer” (1points) Flag as…
filmfann's avatar

The gold used in teeth are not pure gold. It is about 16 karats. When gold is 24 karat, it is softer.

filmfann (52487points)“Great Answer” (3points) Flag as…
RocketGuy's avatar

Gold alloy (esp. for crowns) is much stronger than pure gold (for bullion). You can Google for the numbers and graphs.

RocketGuy (15523points)“Great Answer” (1points) Flag as…

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