No doubt a lot has been learned about the hazards associated with orthodontics since the 60's - 70's. But whether that is true or not, I don't think my parents were ever forewarned about such things as tooth decay, stains, decalcification of teeth, inflammation of soft tissues, periodontal disease, loss of 'tooth vitality' caused by damage to the roots of the tooth caused by the 'treatment', enamel fractures, direct injury caused by the appliances themselves, etc etc. I do know that I certainly wasn't.
Those "risks" are quoted from the article I posted. I know that I am living proof of several of them.
And it's interesting to note the article makes no mention of one hazard I endured - the direct injury caused by a device "expertly" DESIGNED AND INTENDED to cause that injury (the sharp hook cemented on my tooth between ages 8-12 as a 'cure' for lip-biting).
I'm grateful, for the sake of all kids today, that times have changed!