The message
from Helen Deborah Vecht contains these words:

I dare say that they will claim respect for the dead but if they have to
take out pacemakers why not fillings as well?

You can cover the pacemaker extraction site with a shroud.

I think some might be upset if undertakers started whipping out teeth.

Dentistry on the corpses that need it would be cheaper, even in the long
run, than filtering mercury out of incinerator smoke.

With mercury amalgam being phased out albeit slowly and people
increasing outliving their teeth it might even be a problem that will go
away shortly without any active intervention if the current proposals of
halving the mercury output are not changed.

--
Roger Chapman