From the beginning of time there has always been the sale of “overnight cures”.
In 2014 nothing has changed but the sales pitch is now disseminated via the web and social media which does not require the advertiser to support their claims with scientific research.
To become an orthodontist, as discussed here previously, takes years of study. Thousands of hours to learn the best and safest way to provide a healthy and functional smile.
There are a number of quick-fixes being sold to straighten teeth. It is up to the patient to do their homework and ask questions. A week-end course to learn how to instantly align your teeth is not in the best interest of you, the patient.
Please take a moment to read the article provided in the link. I think you will find the information to be invaluable.