Re: Why are some dentures radioactive?

["Bjorn Cedervall" <bcradsafers@hotmail.com>]

The credit to the comment below should go to Kjell Johansen (Milwaukee). I 
can only agree. The same consideration can be made about uranium and its 
daughter products (like Po-120 and Pb-210) in snuff - but there is more 
stuff in snuff...

Question of facts: Is it correct that if you have uranium "containing" 
ceramics in your dentures - that you will shine a little in the dark (I have 
heard/read this from several different sources over the years)? Could 
possibly give some extra appeal in places like discotecques. Such dental 
ceramics are not allowed in Sweden with reference to the ALARA principle - 
but most of the nasty metals in the periodic table can easily be detected in 
cosmetics, lipstick etc (where is the chemical ALARA?) - I heard a Finnish 
professor in analytical chemistry give a talk on it long ago: cadmium, 
bismuth, lead, mercury, arsenic...

Bjorn Cedervall  bcradsafers@hotmail.com
----------------------------------------
What the hot fact did not mention that most of the radiation is alpha
and is obsorbed in the epidermal layer (I think that is the top layer of the 
skin) and does not reach the basal layer which is the active layer. This is 
right out of one the NCRP handbooks on radioactivity in
consumer products.

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