i came across a reference to tooth enamelling enzymes at ********.
( that tooth enamel is naturally replaced under the right conditions, and of
course, any process in the body is carried out by enzymes).

Can anyone tell me:
Are the enzymes external ( presumably in the saliva) or internal to the tooth?

i had my mercury dillings replaced with plastic about 18 months ago.  6
months ago i ate alot of oranges and then much blueberries.  then i noticed
my top front teeth very rough and porous - loss of enamel.
Now i want to recover.  i guess this requires a bias in the diet. (i am now
a raw fooder)

Any suggestions?

Lynton