acepgmr wrote in message <3763D04A.D015D5B2 at best.com>...
>The conclusion is inescapable. Mercury amalgam in a significant cause of
>such lesions and may well be a significant cause of oral cancer.
That oral lichenoid lesions are "precancerous" is controversial (to be
generous). They are very, very rarely precancerous, so rare that they could
just as well be coincidental.