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

Orthodontic resin under water immersion

C L Meng1, W N Wang, T H Tarng

  • 1Department of Dentistry, Tri-Service General Hospital Taipei, Taiwan, R.O.C.

The Angle Orthodontist
|January 1, 1995
PubMed
Summary

Water immersion weakens orthodontic composite bond strength over time, with the most significant loss occurring early. Prolonged water exposure leads to progressive degradation and reduced bond durability between brackets and enamel.

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

[Correlation of ocular surface changes with filtering bleb morphology after antiglaucoma surgery for primary angle-closure glaucoma].

[Zhonghua yan ke za zhi] Chinese journal of ophthalmology·2026
Same author

[Treatment practice and outcomes in 125 patients with autoimmune hemolytic anemia: a single-center retrospective analysis].

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2026
Same author

[Establishment of a database for liver cancer ablation and its clinical research value].

Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology·2025
Same author

[Balamuthia mandrillaris amebic encephalitis: report of a case].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2024
Same author

[Curative effect of percutaneous microwave ablation therapy on hepatocellular carcinoma survival: a 15-year real-world study].

Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology·2024
Same author

[Cytopathological characteristics of SMARCA4-deficient thoracic undifferentiated tumors in serous effusion].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2024

Area of Science:

  • Dental Materials Science
  • Polymer Chemistry
  • Biomaterials

Background:

  • Water absorption and desorption by polymer matrices in composite orthodontic resins can lead to filler-matrix debonding.
  • This process may cause hydrolytic degradation of fillers, ultimately compromising bond strength.
  • Understanding these effects is crucial for improving the longevity of orthodontic bonding.

Purpose of the Study:

  • To evaluate the effect of water immersion duration on the bond strength of orthodontic composites to premolar enamel.
  • To analyze the debonding interface characteristics after varying periods of water exposure.

Main Methods:

  • Bracket-to-enamel bond strength was measured using an Instron machine.
  • Debonding interfaces were examined via scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS).

Related Experiment Videos

  • Samples were immersed in water for durations ranging from 1 day to 32 weeks.

    • Main Results:

    • Bond strength significantly decreased with increased water immersion time.
    • The most substantial reduction in bond strength was observed during the initial immersion period.
    • Further, gradual weakening occurred after 24 weeks, indicating progressive composite resin degradation.

    Conclusions:

    • Water immersion negatively impacts the bond strength of orthodontic composites.
    • The filler-matrix interface is susceptible to degradation, leading to reduced bond durability over time.
    • These findings highlight the importance of considering the effects of moisture on orthodontic bracket adhesion.