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Björn Ludwig is an orthodontics specialist who operates his private office in a small village in Germany. He holds positions at two universities: the University of Homburg/Saar in Germany and the Department of Orthodontics, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Sweden. While his primary focus is on clinical work, he has a strong affinity for technology, which consistently sparks his interest. He is dedicated to advancing as a researcher and writer, actively participating in a variety of research projects and taking on editorial roles for academic journals. Furthermore, he serves as an editor for several books and is the author of numerous book chapters in classic orthodontic texts. In addition to his passion for orthodontics, he also takes pleasure in cycling as a means tounwind.
1st Edition 2023 Book Hardcover, 21 x 28 cm, 316 pages, 890 illustrations Language: German Category: Orthodontics ISBN 978-3-86867-658-7 QP Deutschland
1. Auflage 2016 Book Softcover, 16 x 20 cm, 128 pages, 73 illustrations Language: German Categories: Orthodontics, Patient Education, General Dentistry ISBN 978-3-86867-309-8 QP Deutschland
1. Auflage 2007 Book Hardcover, 176 pages, 477 illustrations Language: German Categories: Implantology, Orthodontics ISBN 978-3-938947-47-0 QP Deutschland
Direct printing of aligners is relatively new and offers a variety of advantages compared to conventional manufacturing methods. Using a case study, this article presents and discusses the possibilities and limits of the process.
Keywords: Angle Class II, division 2 malocclusion, aligner, direct-printed aligner
Aligners are an excellent appliance to use to treat a variety of malocclusions, but their efficiency in treating severe deep bite has long been questioned. Infrazygomatic crest screws are a powerful accessory that, when associated with aligners, can correct Class II malocclusion using Class I elastics. The biomechanics of distalisation using infrazygomatic crest screws causes clockwise rotation of maxillary teeth, but with efficient planning and the intrusive pressure applied by aligners, deep bite was corrected in the present patient, and the entire maxillary posterior segment was distalised en masse simultaneously. This case report describes the biomechanics of aligners coupled with infrazygomatic crest screws to perform en-masse distalisation and correct severe crowding along with deep bite.
Keywords: en-masse distalisation, infrazygomatic screws, aligners, deep bite, severe crowding
Die digitale Behandlungsplanung in der Kieferorthopädie wird neben intraoralen Scans auch von den Entwicklungen der dreidimensionalen Röntgentechniken unterstützt. Dabei ist die Segmentierung der DVT-Daten in Einzelzähne oder ossäre Strukturen ein wichtiges Element, um das diagnostische Potenzial vollständig ausschöpfen zu können. Am Beispiel eines verlagerten Eckzahnes werden unterschiedlichen Methoden der digitalen Bearbeitung der DVT-Daten vorgestellt und einer kritischen Wertung unterzogen.
Keywords: DVT, Segmentierung, digitale Kieferorthopädie