I have no sigbificant input except to say that this forum
has had only 2-4 dentists post over the past few years.
The JADA has articles on occupational injuries (carpal tunnel syndrome) and does not mention DD/DC. My naive
understanding is that DD/DC is a genetic predispostion
that may manifest in the presence of trauma. Foreceps
and elevators may contribute; I doubt that hand pieces and
scalers are likely sources of trauma. Again, this is conjecture on my part. My Dupuytrens manifested itself
after I applied great pressure hand screwing foot straps to
my son's sailboard. Welts/callouses appeared afterwards
and became contractures over the next two years. I might
attribute parenthood to my Dupuytren's (or windsurfing.)