What are dentures made of? They used to allow uranium in them. Do they still incorporate this ingredient ?

My brother was in Iraq and now has depleted uranium poisoning, during the research I was doing on it I discovered that dentures at one time had depleted uranium in them. This concerns me because 6 months ago my husband was fitted for dentures.

What are dentures made of? They used to allow uranium in them. Do they still incorporate this ingredient ?
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Complete dentures have a base made of the plastic (polymer POLYMETHYL METHACRYLATE) which rests against the gum tissue and either plastic or porcelain teeth. In the past, denture teeth made with porcelain were generally preferred over teeth made from plastic due to their greater durability and esthetics. However, in recent years, new generation biomaterials have resulted in the development of very wear-resistant false teeth made from plastic.





In the 1940s, manufacturers began adding uranium to the porcelain powder used to make denture teeth. The idea was that the fluorescence of the uranium would help mimic the look of real teeth under a variety of natural and artificial light conditions.


The original patent was in 1942 by Dietz.





Depleted uranium (DU) was preferred over natural uranium. This had two benefits – it was cheaper and it was less radioactive.





According to NCRP (National Council on Radiation Protection ), it seems that manufacturers had stopped adding uranium to porcelain dentures by 1986 or so..





Also rare earth elements, such as cerium, terbium, dysprosium or samarium have replaced Uranium in dentures.
Reply:Dentures are made of plastic.


http://www.orau.org/ptp/collection/consu...


http://en.wikipedia.org/wiki/Depleted_ur...

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