A study club for dentists and
orthodontists. Learn to prevent &
reverse the consequences of mouth
breathing and retractive mechanics.
Dr. Bieneman has studied all kinds of airway techniques, the challenge was how to put them all together.
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.
Extraction Retraction Regret Syndrome™ (E.R.R.S.™) is a constellation of esthetic, functional, and emotional signs and symptoms associated with retractive orthodontic procedures
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 study club and how it can help dentists and orthodontists who are passionate about practice growth & patient health.
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!
Good News/Bad News
A growing number of orthodontists & "ortho-dentists" are joining Dr. Hang in diagnosing this syndrome and offering treatments that patients are gladly paying for.
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 study club provide in-depth information about the nature of E.R.R.S.™ and comprehensive training in prevention & reversal of E.R.R.S.™


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:
"It took me 2 years to find someone like Dr. Hang; the only local practitioner to see for those of us suffering the long-term effects of bicuspid extraction. Technically way ahead of nearly everyone else on the OSA/Orthodontia treatment."
Meet E.R.R.S.™ Patients Who Have Been Treated By Dr. Hang
Laura H. | Valencia, CA
"Any child that is brought to Dr. Hang is going to have their life improved far more than they could ever imagine. I will surely bring my future children to him one day. He is helping me with extreme jaw issues that could have all been avoided had I not gone down the traditional orthodontics route. Dr. Hang is anything but traditional, he is an innovator."
Patrick Z. | Princeton, NJ
Dr. Hang offers seminars and workshops devoted to preventing, diagnosing and reversing E.R.R.S.™
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.