Related Experiment Video
Updated: Jun 3, 2026

Force System with Vertical V-Bends: A 3D In Vitro Assessment of Elastic and Rigid Rectangular Archwires
Published on: July 24, 2018
Polyphenylene polymers as esthetic orthodontic archwires.
Charles J Burstone1, Stephenie A H Liebler, A Jon Goldberg
1Division of Orthodontics, School of Dental Medicine, University of Connecticut Health Center, Farmington, CT06030, USA.
New polyphenylene (PP) polymers show promise as esthetic orthodontic archwires. These PP wires offer high spring-back and formability, similar to traditional materials, for effective labial alignment.
Area of Science:
- Materials Science
- Biomaterials Engineering
- Orthodontics
Background:
- Aesthetic and effective labial archwires are in demand.
- Polyphenylene polymers are a novel material for consideration.
Purpose of the Study:
- To evaluate the potential of new, high-strength polyphenylene polymers as esthetic orthodontic archwires.
- To assess the mechanical and physical properties of polyphenylene wires.
Main Methods:
- Polyphenylene polymer was extruded into clinically relevant round and rectangular wires.
- Tensile, flexure, spring-back, stress-relaxation, and formability were assessed.
- Arch forms and secondary shapes were created to evaluate formability.
Main Results:
- Smooth wires with consistent dimensions, high spring-back, and good ductility were produced.
- Polyphenylene wires exhibited forces comparable to beta-titanium and nickel-titanium wires of smaller dimensions.
- The material showed significant stress relaxation up to 75 hours, classifying it for alignment or leveling.
- High formability allowed for shape bending comparable to stainless steel wires.
Conclusions:
- Polyphenylene polymers demonstrate potential as esthetic orthodontic archwires.
- Further research is recommended to fully explore their clinical application.
More Related Videos
Related Concept Videos
Polymer Classification: Architecture
Polymer Classification: Stereospecificity
Classification and Mechanical Properties of Synthetic Polymers

