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Updated: Aug 7, 2026
07:32
Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
Alignment of displaced or impacted teeth with the traction chain
Franz Martin Sander1, Christian Sander, Franz Günter Sander
1Department of Orthodontics, University of Ulm, Ulm, Germany.
Summary
This study introduces an optimized traction chain for surgically exposed teeth, preventing device loss and further surgery. The novel chain uses laser-roughening and acid-etching for secure attachment, simplifying orthodontic treatment.
Area of Science:
- Dentistry
- Orthodontics
- Biomaterials
Background:
- Surgically exposing unerupted or displaced teeth is necessary for dental arch alignment.
- Protecting the traction device after surgical exposure is crucial to avoid repeat interventions.
Observation:
- A novel traction chain was developed and tested at the University of Ulm.
- The chain features a laser-roughened pad for acid-etching attachment to the tooth.
- Chain links act as fixation points for orthodontic traction devices like elastic ligatures or archwires.
Findings:
- The optimized traction chain ensures secure attachment, minimizing the risk of device loss.
- The design allows for easy monitoring of tooth eruption distance by counting chain links.
- Clinical application in two cases demonstrated the device's efficacy and reliability.
Implications:
- This innovation reduces the need for additional surgical procedures in managing impacted teeth.
- It offers a more predictable and efficient method for orthodontic traction.
- The device has the potential to improve patient outcomes and reduce treatment time.
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