Events

If you want to submit a meeting or an event that is relevant to orthodontic teaching please contact the Secretary (see contact details). It is to the discretion of the Council to decide on placement on the NEBEOP website.


    • Event: NEBEOP Web Academy webinar- 53 and 54
    • Topic: Welcome to the other side – Biomechanics in Lingual Orthodontics; Part 1 and 2
    • Erasmus course:D5 Fixed labial and lingual appliances
    • Speaker:Professor Dirk Wiechmann, Department of Orthodontics, Hannover Medical School, Hannover, Germany
    • Dates: Tuesday 03-03-2026 19:00-20.15hr and Tuesday 14-04-2026 19:00-20:15hr
    • Moderator: Prof Rainer Schwestka-Polly, Hannover Medical School, Hannover, Germany
    • Mode: Zoom webinar. Registration through your program director

    • Abstract
    • Orthodontic treatment with labial and lingual fixed appliances is based on fundamentally different biomechanical principles and differs in many respects. Theoretical basics and clinical consequences are closely intertwined. Understanding these relationships not only facilitates everyday clinical practice but also enables a more efficient approach to achieving high-quality correction of malocclusions with fixed appliances in general. In the first part, the special significance of third-order control in orthodontic biomechanics is discussed as an example. Emphasis is placed on highlighting the differences between inclination control and torque movement, since understanding these completely different yet seemingly similar movements is of great clinical relevance. In the second part, the expanded possibilities in treatment planning and execution are discussed from both a clinical and a scientific perspective.

    • Objectives
    • Describe the different treatment options using fixed lingual appliances. Recognize that a controlled torque movement can make a decisive difference in the quality of the treatment outcome. Assess the degree of precision with which accurate torque control can be achieved using different appliance systems. Appreciate the expanded possibilities in treatment planning when precise torque control is reliably realized. Evaluate the clinical outcomes of this approach in lingual treatment of various malocclusions. Summarize the advantages of broader expertise in orthodontic biomechanics.

    • Short Speaker Bio
    • Prof. Dr. Dirk Wiechmann is Professor of Orthodontics at Hannover Medical School Germany and Adjunct Professor at the University of Bern Switzerland. Prof. Wiechmann is particularly known for his contributions to advanced orthodontic techniques. The main focus of his scientific activity is lingual orthodontics and individualized appliance systems. He has authored numerous peer-reviewed publications and lectures widely to both academic and clinical audiences. He was awarded the 2026 EOS Distinguished Teachers Award.He also maintains a private practice in Bad Essen (Germany), which is currently the largest lingual orthodontic practice in the world, with more than 1,000 lingual patients undergoing active treatment.

    • References
    • 1: Wiechmann D. Chances and opportunities of lingual orthodontics in the era of aggressively marketed aligners -Excellence and evidence in care, Seminars in Orthodontics (2026); in press, doi.org/10.1053/j.sodo.2025.12.004

    • 2: Alouini O, Knösel M, Blanck-Lubarsch M, Helms HJ, Wiechmann D. Controlling incisor torque with completely customized lingual appliances. J Orofac Orthop. 2020 Sep;81(5):328-339. doi: 10.1007/s00056-020-00231-9. PMID: 32472341.

    • 3:Schmid JQ, Katsaros C, Sculean A, Galletti C, Bettenhäuser-Hartung L, Janssens Y. The effect of lingual orthodontic appliances in the dimensional reduction of labial gingival recession and root prominence caused by wire syndrome in the anterior mandible: a multicenter study. Quintessence Int. 2025 Apr 22;56(4):306-317. doi: 10.3290/j.qi.b5984435. PMID: 39976246.

    • 4: Schmid JQ, Gerberding E, Hohoff A, Kleinheinz J, Stamm T, Middelberg C. Non-Surgical Transversal Dentoalveolar Compensation with Completely Customized Lingual Appliances versus Surgically Assisted Rapid Palatal Expansion in Adults-Tipping or Translation in Posterior Crossbite Correction? J Pers Med. 2023 May 9;13(5):807. doi: 10.3390/jpm13050807. PMID: 37240977; PMCID: PMC10222191.

    • 5:Wiechmann D, Bantleon HP, Melsen B, Zachrisson B, Hägg U, Canal P, Garcia R, Barthélemi S, Frapier L, Grauer D, Sander C, Diedrich P, Jacobs C, Wehrbein H, Hohoff A, Helms HJ, Schwestka-Polly R. Incorrect measurements and misleading conclusions in the article "Comparison of the efficacy of tooth alignment among lingual and labial brackets: an in vitro study". Head Face Med. 2020 Apr 22;16(1):7. doi: 10.1186/s13005-020-00221-7. PMID: 32321577; PMCID: PMC7175492.