Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Force system developed from closed coil springs

B Melsen1, L F Topp, H M Melsen

  • 1Department of Orthodontics, University of Aarhus, Denmark.

European Journal of Orthodontics
|December 1, 1994
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The role of orthodontics in the regeneration of the degenerated dentition.

Journal of oral rehabilitation·2015
Same author

Drifting of teeth in the mandible studied in adult human autopsy material.

Orthodontics & craniofacial research·2015
Same author

Unilateral and bilateral dental transpositions in the maxilla-dental and skeletal findings in 63 individuals.

European archives of paediatric dentistry : official journal of the European Academy of Paediatric Dentistry·2015
Same author

Multi-level synchrotron radiation-based microtomography of the dental alveolus and its consequences for orthodontics.

Journal of biomechanics·2015
Same author

Alveolar bone preservation subsequent to miniscrew implant placement in a canine model.

Orthodontics & craniofacial research·2014
Same author

The relationship between upper airways and craniofacial morphology studied in 3D. A CBCT study.

Orthodontics & craniofacial research·2014

This study analyzed 19 coil springs, finding only one type exhibited superelastic behavior. Significant differences in force deflection and maximal force were observed, highlighting the need for better manufacturer information for orthodontic springs.

Area of Science:

  • Materials Science
  • Biomedical Engineering
  • Orthodontics

Background:

  • Coil springs are crucial components in orthodontic treatments.
  • Understanding their mechanical properties, such as load-deflection rate and maximal force, is essential for effective clinical application.
  • Variability in spring performance can impact treatment outcomes.

Purpose of the Study:

  • To evaluate the superelastic behavior, load-deflection rate, and maximal force of 19 different coil spring products.
  • To compare the mechanical properties across various spring types and identify significant differences.
  • To assess the intra-product variation and compare it with manufacturers' claims.

Main Methods:

  • Testing of 19 coil spring products, with ten springs analyzed per type.

Related Experiment Videos

  • Measurement of force levels at activation and deactivation at 5 mm intervals from 0 to 100% extension.
  • Analysis of load-deflection rate and maximal force at 100% extension.

    • Main Results:

    • Only GAC springs demonstrated superelastic wire behavior.
    • The 19 products could be clinically classified into four groups based on force deflection rate and five groups based on maximal force.
    • Significant variations in mechanical properties were found between different spring types.
    • TP springs exhibited the lowest intra-product variation.

    Conclusions:

    • There is considerable variability in the mechanical properties of orthodontic coil springs currently available.
    • Manufacturers' provided information is often insufficient to accurately predict spring performance.
    • Enhanced product information and standardization are necessary to ensure predictable clinical outcomes in orthodontic treatments.