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April 21 | 12:00 pm 5:00 pm

Join us for an Orthodontics CE course with Dr. Won Moon at the AAO meeting in Chicago on April 21, 2023.


How to Incorporate Maxillary Skeletal Expander (MSE) in Your Practice Immediately: The Nuts and Bolts of MSE Application

Date and time

12PM-5PM CST, Friday, April 21, 2023. Four hour lecture and 50 minute demonstration.

Time zone in Chicago, IL (GMT-6)



CE credits

5 CE credits will be provided.

Course Detail:

The non-surgical Maxillary Skeletal Expander (MSE) has evolved since 2004, and its application has steadily been growing globally. With the proliferation of MSE-related publications by multiple authors, there is clear evidence to support its impact. The essential nuts and bolts of the diagnosis, treatment planning, appliance selection, fabrication, expansion protocols, patient management, and troubleshooting process related to MSE will be highlighted. Some recent discoveries will be explored with research data. The aim of this presentation is to relay the most practical information for immediate implementation of this novel technique in everyone’s clinical practice.

The dental and skeletal effects of maxillary expansion using the conventional rapid palatal expander (RPE), the surgically-assisted rapid palatal expander (SARPE), and the micro-implant assisted midfacial skeletal expander (MSE) will be illustrated. Dental expansion, bone bending, and true skeletal expansion will be compared. The adverse clinical consequences of RPE and SARPE in high-angle cases will be explored, and a new approach eliminating these problems by the use of MSE will be presented, based on research data. Clinical cases involving non-surgical midfacial expansion in both adolescent and adult patients will be examined in detail. Through these clinical examples, a proper MSE fabrication and expansion protocols will be illustrated.

Secondly, other advantages of utilizing MSE will be demonstrated. Clinical cases and research findings illustrating the profound enlargement of nasal airways and functional improvements after MSE in both adolescent and adult patients will be closely evaluated. The airway obstruction and the Obstructive Sleep Apnea Syndrome (OSAS) are related but the true impact of MSE for OSAS has not been clearly defined. The latest findings regarding the impact of MSE from the research team will be presented.

MSE can also aid in orthopedic correction of Class III cases when combined with a protraction device. Clinical cases combining MSE and FM in both growing and mature patients will be discussed, and orthopedic effects will be illustrated. The use of growth modification for young patients and distraction-like protraction techniques for mature patients, in conjunction with this new device, open the door to many new possibilities. The latest findings from the research team will be presented in order to enhance depth of understanding in impact of MSE.

Hands-On Demo and Workshop:

This will follow the seminar

Learning Objectives:

  • Overall concept of MSE, Dx and Tx planning, and patient selection
  • Craniofacial vs dentoalveolar changes with MSE
  • Proper appliance selection and fabrication
  • Optimal activation protocol based on mechanical and biological considerations
  • Solution for patients with narrow palates
  • Solution for patients requiring multiple MSEs
  • Asymmetric patients and asymmetric expansion
  • Cortopuncture and MSE for challenging cases
  • Combining minor surgical procedure with MSE for even more challenging cases
  • MSE and airway changes
  • Troubleshooting

About Dr. Moon

Won Moon, DMD, MS, Professor, Department of Orthodontics, Ajou University School of Medicine; Adjunct Professor, The Forsyth Institute; Adjunct Professor, Kyung Hee University; Former Thomas R. Bales Endowed Chair in Orthodontics, UCLA (2013-2020); Founder, the Moon Principles International Research Institute; Co-Founder, BioTech Innovations; Diplomate of the American Board of Orthodontics, since 2002

Dr. Won Moon is the Founder/CEO of the Moon Principles Institute (“the MoonLab”) and a Co-founder/Chief Innovations Officer of BioTech Innovations. He served as the Thomas R. Bales Endowed Chair in Orthodontics for the orthodontic residency program at UCLA School of Dentistry (2013-2020), and he currently holds three academic positions: Full-Professorship at Ajou University School of Medicine, and Adjunct Professorship at the Forsyth Institute and Kyung Hee University. He has been a Diplomate of the American Board of Orthodontics since 2002.

He completed his dental education at Harvard and orthodontic education at UCLA. He studied mathematics prior to dentistry. His work has been published in various journals, not necessarily limited to orthodontics because of his physical science background, and he is a co-author of seven textbooks, including the Graber’s 7th Edition. He has presented these findings in over 43 countries, totaling over 550 presentations. He received multiple research grants during his tenure at UCLA, including the Groundbreaking Research Project Grant Award in 2014. Besides the numerous research and presentation awards over the years, he has received the “Faculty of the Year Award” multiple times, and he was the recipient of the “Lifetime Achievement and Faculty Dedication/Excellence Award” in 2019 and the “Best Mentor Award” in 2022. His current focus has been establishing protocols for orthopedic corrections with MI, improving the airway for patients with nasal obstruction, creating virtual patients utilizing image analysis and FEM, and developing a novel Aligner System.

His interest in mid-facial expansion began in 2004 as micro-implant became available in the USA, and he is responsible for developing Maxillary Skeletal Expander (MSE), a unique micro-implant assisted rapid palatal expander (MARPE). He has been active in advocating non-surgical skeletal expansion in both children and adult patients, especially for those who may suffer from airway restrictions. His presentation in MSE has been widely accepted internationally, and numerous peer-reviewed publications are available. He is currently involved in multiple MSE research projects in collaboration with national and international colleagues.

The Forsyth Institute is an ADA CERP recognized provider. ADA CERP is a service of the American Dental Association to assist dental professionals in identifying quality providers of continuing dental education. ADA CERP does not approve or endorse individual courses or instructors, nor does it imply acceptance of credit hours by boards of dentistry. The Forsyth Institute designates this activity for 5 continuing education credits.

This event is made possible by an education grant from Great Lakes Dental Technologies.

Cancellations and Refunds

Forsyth will grant refunds for all cancellations received within 15 days prior to the course date.

Forsyth will retain a $10 cancellation fee for any course.

Forsyth will grant a full refund if the lecturer must cancel the course due to unforeseen circumstances. Forsyth will make every effort to contact all registrants in the event of course cancellation.