Not being a dentist would not comment on the problem, but as a consumer,
would be interested if this opinion has any merit.   Silver fillings have
always been the norm and they seem to be better fitted for cavites' fillings
for proper occlusion and adjustments.
they seem to be the most natural contour of the tooth before cavity was
filled.  and they seem to have  better span of use.   I cannot tell the
mercury filled tooth bite from the feel of the natural tooth with no
filling.   And rarely did a natural tooth have to be filed down to
accommodate the opposite silver filling.   There is no longer a choice of
silver or composite.    Please remark on the flaws of this thinking, other
than mercury is possibly a dangerous substance for the mouth.

Gail  (who can never progress in a progressive world., probably  still in
the B.C. era)
(What did they do then?  Pull every tooth that had sufficient decay?)
(or did they just have a good diet forcibly  by the absence of sugar and
coca-cola)
stupid, huh?

Possible super-eruption
Possible muscle spasm
Possible need to learn a more sophisticated way of expressing yourself.