Use of Gold in Dentistry

How would iron work as a dental filling? Not very well… your dentist would need blacksmithing tools, your smile would be rusty a few days after a filling and you would need to get used to the taste of iron. Even at much higher expense, gold is used in dentistry because of its superior performance and aesthetic appeal. Gold alloys are used for fillings, crowns, bridges and orthodontic appliances. Gold is used in dentistry because it is chemically inert, nonallergenic and easy for the dentist to work.

Gold is known to have been used in dentistry as early as 700 B.C. Etruscan “dentists” used gold wire to fasten replacement teeth into the mouths of their patients. Gold was probably used to fill cavities in ancient times;, however there is no documentation or archaeological evidence for this use of gold until a little over 1000 years ago.

Gold was much more generously used in dentistry up until the late 1970’s. The sharp run-up of gold prices at that time motivated the development of substitute materials. However, the amount of gold used in dentistry is starting to rise again. Some motivation for this comes from concerns that less inert metals might have an adverse effect on long-term health.

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