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A mentorship for dentists and orthodontists. Learn to prevent & reverse the consequences of mouth breathing and retractive mechanics.

A mentorship for dentists and Extraction Retraction Regret Syndrome™ (E.R.R.S.™) is a constellation of esthetic, functional, and emotional signs and symptoms associated with retractive orthodontic procedures

What we’ve learned from our patients is that pursuing the “perfect smile” isn’t a worthy goal if achieving it results in pain patterns, TMJ problems or sleep and breathing issues.
Doctor Hang has recognized and named a syndrome that describes most, if not all of the problems described above.

Member Spotlight

Kevin Adair DDS MSD

Kevin graduated from UCSF School of Dentistry in 1998 and practiced as a general dentist for nine years before realizing that orthodontics was his passion. He went back to school (University of the Pacific), earned a certificate in orthodontics and now practices in Northern California. In the short videos below, he talks about why he chose the mentorship and how it can help dentists and orthodontists who are passionate about practice growth & patient health.

Good News/Bad News

The Bad News is that E.R.R.S.™ is prevalent and largely undiagnosed. The GOOD NEWS is that E.R.R.S.™ is preventable & reversible!

A growing number of orthodontists & “ortho-dentists” are joining Dr. Hang in diagnosing this syndrome and offering treatments that patients are gladly paying for.

E.R.R.S.™ treatments can help your bottom line

We are not practice consultants and do not like to focus on the economic aspects of orthodontics. However, clear aligner marketers and increased competition continue to hurt bottom lines. E.R.R.S.™ treatment techniques are in high demand worldwide. Our experience is that these patients will travel great distances to access them and willingly pay a fee reflective of the expertise required to complete the treatment successfully. If you are an orthodontist or dentist experienced in orthodontics, adding these treatments to your practice is a triple win for you, your patient and your bottom line.

Our mission is to move “orthodontic thinking” toward prevention and reversal of E.R.R.S.™

The Goals of E.R.R.S.™ Treatments Are To:

Protect and/or improve the airway

Reduce or eliminate pain patterns

Improve esthetics

Most E.R.R.S.™ techniques (including re-opening extraction spaces) move the teeth forward in the face. Our seminars and mentorship provide in-depth information about the nature of E.R.R.S.™ and comprehensive training in prevention & reversal of E.R.R.S.™

Meet E.R.R.S.™ Patients Who Have
Been Treated By Dr. Hang

Dr. Greg Campi, DMD

Wall, New Jersey

"ECHO: As an orthodontist I feel there is no orthodontic system that can achieve the great health results of orthrotropics®️."

"ECHO: As an orthodontist I feel there is no orthodontic system that can achieve the great health results of orthrotropics®️."

Neil Stevenson, DMD

Jacksonville, Florida

"He [Dr. Hang] tells us not to be afraid. We all want to help people but we are afraid of failure and he encourages us to just move forward to
"He [Dr. Hang] tells us not to be afraid. We all want to help people but we are afraid of failure and he encourages us to just move forward to help our patients. That's where we are going to learn and grow."

Mark Kogut, DDS, MSD

Dallas, Texas

"I think the most important thing that any student would learn in this particular mentorship is that airway is a big deal. Dr Hang has a number of ideas to
"I think the most important thing that any student would learn in this particular mentorship is that airway is a big deal. Dr Hang has a number of ideas to help with that. He shares his successes and treatments that are not as successful and I think we can learn from both of those."

Ksenia Pushkina, Orthodontist

Moscow, Russia

"...being in the community of doctors and community with Dr Hang. His relationship between him and his students - you feel like you're in the family! If you think this
"...being in the community of doctors and community with Dr Hang. His relationship between him and his students - you feel like you're in the family! If you think this mentorship will change your practice, no. It will totally change your life."

Marc Purdy, DDS

Ithaca, New York

"The more you see, the more you hear the different types of scenarios is what helps you gain a better background. You go through your own career and never hear
"The more you see, the more you hear the different types of scenarios is what helps you gain a better background. You go through your own career and never hear any of this and come across something and not really know how to treat it. This (the E.C.H.O. Mentorship) gives you certainly the basics to do something like that. It kind of circulates through me now."

Kevin Adair, DDS, MSD

Fairfield, California

“You are going to meet some great doctors, I call them the 1%. Being in the study club is going to open you up to these other team members and
“You are going to meet some great doctors, I call them the 1%. Being in the study club is going to open you up to these other team members and resources. It’s going to make you better.”

Victor Avis, DDS

Staten Island, New York

“If you’re doing orthodontics, the study club will change your life. We are using orthodontics to change the quality of a persons health. What an exciting time to be in
“If you’re doing orthodontics, the study club will change your life. We are using orthodontics to change the quality of a persons health. What an exciting time to be in this field. Instead of being a ‘tooth straightener’, you can be part of the team of providers that changes patients lives.”

Dr. Hang offers seminars and workshops devoted to preventing, diagnosing and reversing E.R.R.S.™