Esthetic pre-prosthodontic treatment opportunities by using orthodontic mini-implants.
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Benedict Wilmes
Dettagli del corso
Lettori
Dettagli
1o 46m
Inglese
Programma della lezione
The intrusion of overerupted upper molars is a difficult orthodontic treatment objective. When conventional appliances are used, the extrusion of adjacent teeth may occur. In recent years, temporary anchorage devices have been used to avoid these unwanted side effects. For this purpose, mini-implants have been primarily inserted in the alveolar process. However, due to many disadvantages of mini-implant placement between the roots of the upper molars, it is now preferred to insert mini-implants in the anterior palate ensuring a low risk of failure or mini-implant fracture. As a less bulky alternative to the “Mousetrap” appliance (with TPA) the “Mini-Mousetrap” (without TPA) was designed and comprised two mini-implants in the anterior palate and lever arms for molar intrusion. If a TPA is not used, molar movement must be monitored and the direction of the force adjusted to avoid unwanted molar tipping.
Unless a prosthetic replacement is inserted soon after extraction or loss of a first molar, the second molar may tip mesially into the edentulous space. Not only will the first-molar space contract mesiodistally, but eccentric occlusal loading will reduce the biomechanical loading capacity of the second molar. Such a situation requires preprosthetic uprighting of the second molar using appropriate mechanics. Simply tipping the molar distally will lead to extrusion and likely cause occlusal interference. Stable anchorage is critical, since simultaneous intrusion and uprighting forces create a high moment load on the anchorage unit. Otherwise, unwanted mesial tipping and extrusion of the anchorage teeth may occur. The use of an orthodontic mini-implant for direct anchorage can help avoid such dental side effects. This lecture describes a technique using mini-implants in an edentulous first-molar site as anchorage for uprighting mesially tipped molars.
Lettori 1
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Professor e Deputy Director del Department of Orthodontics presso Heinrich Heine University Düsseldorf, Germania (Professor dal 2013). Specialista in ortodonzia e ortopedia dentofacciale con focus su strategie di trattamento non-complianti e invisibili inclusi dispositivi di ancoraggio temporanei (TADs), ortodonzia linguale e terapia con allineatori trasparenti. Mantiene studio ortodontico privato a Düsseldorf insieme a posizione accademica.
Oltre 20 anni di esperienza clinica e accademica trattando casi ortodontici complessi usando sistemi di ancoraggio scheletrico e flussi di lavoro digitali. Pioniere nello sviluppo di applicazioni TAD innovative inclusi TAD palatali con monconi intercambiabili per espansione trasversale, protrazione ortopedica e distalizzazione molare. Ricerca focalizzata su ortodonzia digitale, tecnologie CAD/CAM per apparecchi personalizzati, biomeccanica dell'ancoraggio scheletrico ed efficienza del trattamento nell'ortodonzia adulta. Esperto nel combinare TAD con allineatori per movimenti dentali complessi prevedibili.
Membro Attivo dell'Edward H. Angle Society of Orthodontists (Eastern Component). Vincitore del First Prize dalla German Orthodontic Society (DGKFO, 2007), First Prize dalla European Orthodontic Society (EOS, 2009), e First Prize dalla German Society for Lingual Orthodontics (2018). Autore di oltre 200 pubblicazioni peer-reviewed e capitoli di libri su TAD, ortodonzia linguale e ortodonzia digitale. Revisore per numerose riviste ortodontiche internazionali incluso American Journal of Orthodontics and Dentofacial Orthopedics, Angle Orthodontist, European Journal of Orthodontics, e altre. Docente internazionale avendo tenuto oltre 300 conferenze e corsi in 70 paesi diversi mondiali su ancoraggio scheletrico, pianificazione del trattamento digitale e biomeccanica ortodontica contemporanea.
DMD dalla Heinrich Heine University Düsseldorf, Germania. Postgraduate degree (Dr. med. dent.) in Ortodonzia e Ortopedia Dentofacciale dalla Heinrich Heine University Düsseldorf. Nomina Professor presso University of Düsseldorf (2013).
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