I have heard that porcelain crowns contain an aluminum salt, and I am concerned about ingesting even a small amount of aluminum due to memory loss.

I think this a matter of confusion. It isn't aluminum salt that is contained in dentures but uranium and this raised concerns too because of the radiation content, found to be too low to create human risk. The explanation being that over a large number of years cells would be destroyed by the radiation but grow back at a faster rate of speed with any damage being negligible.

flossie

I made a faux pas, sorry, and said 'dentures' instead of 'crowns'.

Porcelain-fused-to-metal dental crowns are somewhat of a hybrid between metal crowns and porcelain crowns. When they are made the dental technician first makes a shell of metal that fits over the tooth. A veneering of porcelain is then fused over this metal (in a high heat oven), giving the crown a white tooth-like appearance. Depending on the requirements of your situation, these crowns are sometimes made where the porcelain veneer only covers those aspects of the crown that is readily visible (meaning the other portions of the crown have a metal surface). In other cases these crowns are pretty much fully surfaced with porcelain.

Any aluminum in the porcelain is in a highly stable form. Although aluminum silicate is a very common mineral, the main constituent of most rocks, it is so chemically resistant, that all the metal we use must come special ores. The aluminum in your teeth crowns will never make it into your blood stream.

I agree with labman. Any aluminum used in the making of porcelain crowns will not make it into your blood stream.