Re: Dental radiology; xeroradiography

[Paul lavely <lavelyp@UCLINK4.BERKELEY.EDU>]

S. Julian Gibbs wrote:



>The arguments that newer faster dental films produce inferior images 

>are based on the same sort of reasoning as the LNT hypothesis. 

>Conversely, several well-conducted studies have compared performance 

>of D-speed films (the standard since the 1950s) with E-speed, for a 

>variety of diagnostic tasks.  All show no significant differences. 

>F-speed film is new; studies are under way but not finished.  The 

>costs of all three film types are comparable and in most cases 

>identical.  Thus there is nothing to lose from use of faster films,. 

>. .



Thanks for posting this information. You added an essential element 

to this discussion - facts about the film and the quality of the 

images. What you posted is what I have heard from dentists - the 

image quality is not degraded by the faster films.



May I ask if you are aware of any locality that has a regulatory 

mandate for the use of these faster films and their rationale?





  Paul lavely <lavelyp@uclink4.berkeley.edu>

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