When I was a kid the dentist told me to brush real good... there were even commercials showing me how to do it.
As an adult, my hygienist (sp. ?) tells me I have abrasions from brushing too hard ??? >>> Like it's my fault & MY idea ?!?
Front line to addressing tree problems is to own up to archaic remedies, "Yeah, I know this is how they said to do it back in the day, but it's all we knew..."
Second would be to outline to customers what you're up against... as outlined in this thread, already.
Y'know what pisses me off more than anything about a twelve year old root canal ?!? >>> Hearing it has to be re-done, only more pricey this time. Hearing a dentist atleast explain that old techniques have been improved upon helps.
A little.