Biomechanics, Microimplants, and the MARPE Expander. Kee-Joon Lee's Author Seminar

Biomechanics, Microimplants, and the MARPE Expander. Kee-Joon Lee's Author Seminar is organized by OHI-S and will be held from Jan 23 - 24, 2027 in Warsaw, Mazovia, Poland.

Program:
Master advanced techniques you won't find in textbooks: the biomechanics of MARPE and microimplants for the modern orthodontist!

We invite you to a unique seminar in Warsaw led by world-class expert Kee-Joon Lee, during which you will discover the secrets of modern orthodontic biomechanics.

This course is designed to teach you the safe and effective use of MARPE and microimplants in clinical practice, utilizing biomechanical principles that ensure maximum stability of results even in the most complex cases.

You will learn the principles of tooth movement trajectory planning, anchorage management, reactive force control, and complication prevention. This will help you achieve impressive clinical results and gain greater confidence at every stage of treatment.

Key seminar topics:
– Treatment planning and basic biomechanics of incisor movement control
– Basic biomechanics and control of molar movement
– Microimplant placement and management of complications
– Orthodontic treatment strategies for complex cases without the need for prosthetic treatment
– Biomechanical basis of MARPE appliance protocols
– Clinical application of MARPE in the treatment of open bite, mesial overbite and asymmetry.

Important: " Seminar. Comfort ", " Seminar + Demo Course. VIP " and " Practice " participation options are also available for purchase.

Basic advantages of the " Standard " package:

– Participation in a research program
– Coffee breaks
– Supply materials
– Membership Certificate.

Basic advantages of the " Comfort " package:

– Participation in a research program
– Coffee breaks
– Supply materials
– Member Certificate
- Lunch
– Priority seating in the lobby.

Basic advantages of the " VIP " package:

– Participation in a research program
– Participation in the demonstration of Kee-Joon Lee's workshop class (24/01/2027)
– Coffee breaks
– Supply materials
– Member Certificate
- Lunch
– Priority seating in the lobby
– VIP Format Certificate
– Odznaka VIP 
– Dostep do nauki online Kee-Joon Lee «Molar uprighting using miniscrews: differential diagnosis and lab-free chairside fabrication of MAPS, MAUS»
– Dostep do nauki online Kee-Joon Lee «Minimalism orthodontics for major «root movement»: how to save natural teeth & minimize prosthesis»
– Dostep do nauki online Kee-Joon Lee «Total arch intrusion in hyperdivergent Class 2 face: a replacement therapy for orthopedic treatment»
– Dostep do nauki online Kee-Joon Lee «Non-surgical Treatment Approach of Hyperdivergent Class 2 with Retroclined Incisors»
– Dostep do nauki online Luis Barbero «Aligners treatment protocol with MARPE»
– Dostep do nauki online Armando Dias Da Silva «Treatment on various systems with and without surgery, extraction and MARPE. Part 1»
– Dostep do nauki online Armando Dias Da Silva «Treatment on various systems with and without surgery, extraction and MARPE. Part 2»
– Dostep do nauki online Benedict Wilmes «Difficult cases treatment: aligners + mini-implants»

Basic advantages of the " Practice " package:

– Participation in a research program 
– Coffee breaks 
– Supply materials 
– Member Certificate 
- Lunch 
– Priority seating in the lobby 
– VIP Format Certificate 
– VIP Badge 
– Access to Waleed Kurdi's " Ledge Management "
online learning – Access to Paolo Generali's " Endodontic retreatment: recommendations and techniques "
online learning – Access to Arnaldo Castellucci's " Modern techniques to determine an accurate working length in endodontics "
online learning – Access to Fabio Gorni's " Crown and bridge removal. Posts removal "
online learning – Access to Fabio Gorni's " Broken file management " online learning

Program

Day 1

Treatment planning and basic biomechanics of incisor movement control

– The concept of moment of force and center of resistance
– Anchorage control during anterior tooth displacement
– Protocols for managing deeply impacted teeth
– What should be the first step in treating impacted teeth?
– How to preserve a tooth with periodontal problems?

Basic biomechanics and control of molar movement

– Monitoring molar movement using MAPS (Molar Axis Positioning System) and MAUS (Molar Uprighting with Spacers) protocols
– 3D and 4D monitoring of impacted molar movement: when and how?
– Why is 3D visualization necessary?

Microimplant placement and management of complications

– Understanding anatomy to properly select microimplant sites
– Why are interradicular miniscrews used?
– What to do in case of failure? Microimplant stability and treatment of complications.

Orthodontic treatment strategies for complex cases without the need for prosthetic treatment

– Translation and movement of molar roots
– Is a lever arm sufficient for mesialization of molars?
– Orthodontic reconstruction of the dental arch in complex cases
– Treatment of ankylosis: planning and controlling forces for safe, complication-free tooth movement.

Day 2

Transverse Correction: Why is it Necessary?

– How to diagnose transverse abnormalities?
– How to apply transverse correction in cases of significant tooth crowding?
– Biological basis of transverse abnormality treatment protocols.

Biomechanical basis of MARPE device application protocols

– A comparison of MARPE and the bone-anchored palatal expander (RPE).
– Is MARPE a mandatory method of orthopedic expansion in adults? Can standard RPE achieve separation of the midpalatal suture?
– An analysis of the stability of results after MARPE.
– The use of a rapid palatal expander and the straight-wire technique for maxillary expansion.

Practical recommendations for using MARPE

– Understanding maxillary anatomy for safe MARPE installation and effective treatment.
– Activation protocol: rapid or semi-rapid expansion?
– If suture separation is absent, should expansion be accelerated or slowed?
– Does lack of separation indicate the need for SARPE? If not, what are the intermediate solutions?

Clinical Application of MARPE in the Treatment of Open Bite, Mesial Overbite, and Asymmetry

– Discussion of complications in the absence of suture separation
– Specifics of asymmetry treatment with MARPE
– Correction of open and mesial bite: a step-by-step protocol
– Monitoring and controlling expansion forces to minimize the risk of complications
– Practical recommendations for treatment planning in complex clinical cases.