Lectures and Hands-On Session with MSE Creator Prof. Won Moon: Achieve Maxillary and Mid-facial Parallel Expansion with the MSE.

 In partnership with DB Orthodontics, MSE Creator Professor Won Moon presents The Moon Principles by Won: Evolution of Micro-Implants Supported Midfacial Skeletal Expander (MSE) with Retrospective Overview, the Latest Development, and Prospective Advanced Applications.

This event, on the 22nd May at the Radisson Blu Hampshire, Leicester Square, is a must-attend for orthodontists with an interest in creating even parallel expansion of the anterior and posterior regions.

In his lecture, Professor Moon demonstrates how the MSE is set apart from many traditional expanders. He details the evolution of expanders, discusses the challenges associated with traditional methods, and how the MSE overcomes these challenges. He presents many of his successful case studies, best practice and troubleshooting protocols for the MSE.



What is the MSE?

The MSE is a unique micro-implant assisted rapid palatal expander (MARPE). In approximately 2004, following the recent availability of Mini-implants in the USA, Dr Moon began investigating different methods of mid facial expansion. Following his early designs of MARPEs, and the growth of similar appliances globally, the term MARPE became a generic term, although designs and protocols differed greatly. The MSE was a natural development from the MARPE; it differentiated itself from the pack.



The MSE gives parallel expansion in both the anterior and posterior regions, in comparison to the v shaped anterior expansion created with traditional MARPE, Hyrax or other expansion devices.


MSE’s success lies in its bi-cortical engagement. The protocol for securing the MSI involves inserting four mini-implants into the palatal bone and the nasal cavity; creating effective parallel expansion, and creating more of a mid-facial expansion as well as a maxillary expansion. The MSE also creates relatively parallel expansion by expanding the inferior as well as the superior aspects of midfacial structure because of the bicortical engagements. This, in turn, maximizes airway enlargement.


In this packed day of lectures and hands-on sessions, Professor Moon also explains how by opening the patients’ airways has improved the breathing and quality of sleep of many of his patients.


Combined with a face mask, the MSE becomes a powerful tool when treating class III patients. The MSE can create a significantly greater amount of forward movement of the maxilla; beyond the scope of traditional face mask approaches.


It promotes posterior force loading instead of middle or anterior loading. Traditionally, typically expanders are positioned more anteriorly, and the MSE is positioned in a more distal area – expansion is created into the nasal bone area and back into the zygomatic arch.


Professor Moon presents many clinical cases showing how the MSE has been used in the treatment of young, older and mature patients; even extending to patients in their 50’s. Dr Moon also covers common mistakes to avoid; including the recommendation of a manual driver instead of motorised, and the importance of choosing the correct length of mini-implant to ensure full engagement in both layers of the cortical bone.


Book now

This course, offering 8 CPD points, is expected to sell out fast, so early booking is advised. To book visit www.dbortho.com/pages/events, email sales@dbortho.com or call 01535 656999.


MSE Related References

Combs A, Mompell RD, Zhang B, Elkenawy I, Fijany L, Paredes, N, Moon W. Objective and Subjective Functional Breathing Improvements Following Treatment with Maxillary Skeletal Expander. Medical Devices: Evidence and Research. Am J Orthod Dentofacial Orthop. Submitted for Publication, 2020

Cantarella D, Moon W. A new methodology for the digital planning of micro-implant-supported maxillary skeletal expansion. Medical Devices: Evidence and Research. Submitted for Publication (247751) 2020

Wakako T, Moon W. The prevalence of posterior tongue tie in patients who required maxillary skeletal expansion. Progress in Orthodontics. Submitted for Publication 2019

Paredes N, Colak O, Sfogliano L, Elkenawy I, Fijany L, Fraser A, Zhang B, Moon W. Differential assessment of skeletal, alveolar and dental components induced by microimplant-supported Midfacial Skeletal Expander (MSE). Progress in Orthodontics. Submitted for Publication (PIOR-D-20-00004) 2019

Jaria E, Cheng N, Mompell RD, MacGinnis M, Moon W. Fixed Functional Appliance and Temporary Anchorage Device (TADs) to Achieve Mandibular Growth Enhancement for Skeletal Class II Correction. Progr in Orthod. Submitted for Publication (PIOR-D-19-00509) 2019

Paredes N, Sfogliano L, Elkenawy I, Fijany L, Fraser A, Zhang B, Torres MC, Moon W. Methodology Paper: Locating rotational fulcrums of zygomaticomaxillary complex and introducing a novel angular measurement system for archial craniofacial movements. J World Fed Orthod. Submitted for Publication 2019

Elkenawy I, Fijany L, Moon W. An assessment of the magnitude, parallelism, and asymmetry of micro-implant assisted rapid maxillary expansion in non-growing patients . Am J Orthod Dentofacial Orthop. Submitted for Publication 2019

Grigolato L, Filippi S, Barattin D, Cantarella D, Moon W, Meneghello R, Concheri G, Savio G. Conceptual Design of a Functional Orthodontic Appliance for the Correction of Skeletal Class II Malocclusion. ADM2019 International Conference. Accepted for Publication 2019

Song KT, Park JH, Moon W, Chae JM. Three-dimensional changes of the zygomaticomaxillary complex after mini-implant assisted rapid maxillary expansion (MARME). Am J Orthod Dentofacial Orthop. 2019 Nov 156 (5), 653-662. DOI: 10.1016/j.ajodo.2018.11.019. PMID: 31677674

Storto CJ, Garcez AS, Suzuki H, Cusmanich KG, Elkenawy S, Moon W, Suzuki SS. Assessment of respiratory muscle strength and airflow before and after microimplant-assisted rapid palatal expansion. Angle Orthod. 2019 Mar DOI: 10.2319/070518-504.1

Suzuki SS, Garcez AS, Storto CJ, x Cusmanich KG, Elkenawy S, Moon W. Effects of Maxillary Skeletal Expansion on respiratory function and sport performance in a Para-athlete – a case report. Phys Ther Sport. 2019 Jan 14;36:70-77. doi: 10.1016/j.ptsp.2019.01.005. [Epub ahead of print] PMID: 30677598

Suzuki SS, Braga LS, Fujii D, Moon W, Suzuki H. Corticopuncture facilitated Micro-implant Assisted Rapid Palatal Expansion: Case Report. Case Reports in Dentistry. 2018 Dec Case Report (12 pages), Article ID 1392895, Volume 2018

Abedini S, Elkenawy I, Kim E, Moon W. Three-dimensional soft tissue analysis of the face following micro-implant supported maxillary skeletal expansion. Progress in Orthodontics. 2018 Nov 19:19(1). Doi: 10.1186/s40510-018-0243-z. PMID: 30450504

Cantarella D, Dominguez-Mompell R, Moschik C, Sfogliano L, Elkenawy I, Pan HC, Mallya SM, Moon W. Zygomaticomaxillary modifications in the horizontal plane induced by micro-implant-supported skeletal expander, analyzed with CBCT images. Progress in Orthodontics. 2018 Oct 22;19(1):41. doi: 10.1186/s40510-018-0240-2. PMID: 30345476

Cantarella D, Dominguez-Mompell R, Mallya SM, Moschik C, Pan HC, Miller J, Moon W. Midfacial changes in the coronal plane induced by micro-implant-supported skeletal expander, studied with CBCT images. Am J Orthod Dentofacial Orthop. 2018 Sep;154(3):337-345. doi: 10.1016/j.ajodo.2017.11.033. PMID: 30173836

Moon W. Class III Treatment by Combining Facemask (FM) and Maxillary Skeletal Expander (MSE). Seminars in Orthodontics. 2018 Mar;24(1):95-107 (Ref: YSODO524; ISSN 1037-8746)

Muelas L, Moon W. Interview with Dr. Leinor Muelas and Dr. Moon. Modern Dentist. 2017 Dec;31:20-25

Moon W. Non-Surgical Orthopedic Correction with Micro-Implants: Breaking the Rules and Expanding the Boundaries. J Kinki: Special Lecture. 2017 Nov; 52:8-13

Cantarella D, Dominguez-Mompell R, Mallya SM, Moschik C, Pan HC, Miller J, Moon W. Changes in the midpalatal and pterygopalatine sutures induced by micro-implant-supported skeletal expander, analyzed with a novel 3D method based on CBCT imaging. Prog Orthod. 2017 Nov;1;18(1):34. doi: 10.1186/s40510-017-0188-7. PMID: 29090368

Lee RJ, Moon W, Hong C. Effects of monocortical and bicortical mini-implant anchorage on bone-borne palatal expansion using finite element analysis. Am J Orthod Dentofacial Orthop. 2017 May;151(5):887-897. doi: 10.1016/j.ajodo.2016.10.025. PMID: 28457266

Brunetto DP, Sant'Anna EF, Machado AW, Moon W. Non-surgical treatment of transverse deficiency in adults using Microimplant-assisted Rapid Palatal Expansion (MARPE). Dental Press J Orthod. 2017 Feb;22(1):110-125. doi: 10.1590/2177-6709.22.1.110-125.sar. PMID: 28444019

Carlson C, Sung J, McComb RW, Machado AW, Moon W. Authors' response. Am J Orthod Dentofacial Orthop. 2017 Jan;151(1):4-6. doi: 10.1016/j.ajodo.2016.10.011. PMID: 28024781

Suzuki H, Moon W, Previdente LH, Suzuki SS, Garcez AS, Consolaro A. Miniscrew-assisted rapid palatal expander (MARPE): the quest for pure orthopedic movement. Dental Press J Orthod. 2016 Jul-Aug;21(4):17-23. doi: 10.1590/2177-6709.21.4.017-023.oin. PMID: 27653260

San’Anna EF; Caneiro da Cunha A; Marquezan M; Brunetto DP; Moon W: “Expansao Dentoalveolar Em Pacientes Adultos Utilizando Disjuntores” Chapter 16: 228-238. Capitulo Livro Arbor (Book from Brazilian Association of Orthodontics), June 2016

Carlson C, Sung J, McComb RW, Machado AW, Moon. Micro-implant Assisted Rapid Palatal Expansion (MARPE) Appliance to Orthopedically Correct Transverse Maxillary Deficiency in an Adult Patient. Am J Orthod Dentofacial Orthop. 2016 May;149(5):716-28. doi: 10.1016/j.ajodo.2015.04.043. PMID: 27131254 “2017 CDABO Case Report of the Year Award”

Moon W. Using Micro-Implant Assisted Maxillary Skeletal Expanders (MSEs) in Nonsurgical Orthopedic Correction. Summary of the Presentation by Won Moon at the PCSO Annual Session, Oct 22, 2015. PCSO Bulletin. 2016 Summer; 53-55. Edited by Hong C

Ngan P, Moon W. Evolution of Class III treatment in orthodontics. Am J Orthod Dentofacial Orthop. 2015 Jul;148(1):22-36. doi: 10.1016/j.ajodo.2015.04.012. PMID: 26124025

Moon W, Wu KW, MacGinnis M, Sung J, Chu H, Youssef G, Machado A. The Efficacy of Maxillary Protraction Protocols With the Micro-Implant Assisted Rapid Palatal Expander (MARPE) and the novel N2 Mini-Implant - A Finite Element Study. Prog Orthod. 2015 June;16:16. doi: 10.1186/s40510-015-0083-z. Epub 2015 Jun 4. PMID: 26061987

MacGinnis M, Chu H, Youssef G, Wu KW, Machado AW, Moon W. The Effects of Micro-Implant Assisted Rapid Palatal Expansion (MARPE) on the Nasomaxillary Complex - A Finite Element Method (FEM) Analysis. Prog Orthod. 2014 Aug;29;15:52. doi: 10.1186/s40510-014-0052-y. PMID: 25242527

Moon W, Khullar R: “Class III Orthopedic Treatment with Skeletal Anchorage” (DOI: 10.2174/9781608054916114010008) Chapter 5: 116-150 (35). Orthodontic Treatment of Class III Malocclusion (DOI: 10.2174/97816080549161140101 eISBN: 978-1-60805-491-6, ISBN: 978-1-60805-686-6), Bentham eBooks, June/July 2014

Moon W. An Interview with Won Moon by Andre Wilson Machado, Barry Briss, Greg J Huang, Richard Kulbersh and Sergei Godeiro Fernandes Rabelo Caldas. Dental Press J Orthod. 2013 May-Jun;18(3):12-28. PMID: 242282