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

Do adhesives prevent microleakage?

D H Retief1

  • 1Department of Biomaterials, University of Alabama School of Dentistry, UAB Station, Birmingham 35294.

International Dental Journal
|February 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

In vitro enamel and cementum fluoride uptake from three fluoride-containing composites.

Caries research·1998
Same author

In vitro dentine fluoride uptake from three fluoride-containing composites and their acid resistance.

Journal of dentistry·1997
Same author

Shear bond strengths of two commercially available dentine-amalgam bonding systems.

Journal of dentistry·1996
Same author

Shear bond strength and quantitative microleakage of a multipurpose dental adhesive system resin bonded to dentin.

The Journal of prosthetic dentistry·1995
Same author

Laboratory evaluation of the Gluma 3-step bonding system.

American journal of dentistry·1995
Same author

Laboratory evaluation of the A.R.T. bonding system.

American journal of dentistry·1994
Same journal

Sidt2 Knockdown Aggravates Apical Periodontitis Via Autocrine Tumour Necrosis Factor-Alpha.

International dental journal·2026
Same journal

Effects of Abrasive Flow Finishing on the Surface Quality, Frictional Resistance, and Biological Performance of Brackets.

International dental journal·2026
Same journal

Pinocembrin Alleviates Gingival Fibroblast Senescence in a Mouse Model of Periodontitis Via CYP1B1 Downregulation.

International dental journal·2026
Same journal

Validity of a Combined General and Oral Health Indicator for Vulnerability.

International dental journal·2026
Same journal

Letter to the Editor on the e-SEM Programme: Methodological Considerations and Critical Perspectives on a Theory-Driven Digital Oral Health Intervention by Acosta and Pisarnturakit.

International dental journal·2026
Same journal

Electric vs Manual Toothbrushing Effects on QLF-Assessed Plaque in Smokers and Non-Smokers: A 24-Week RCT.

International dental journal·2026
See all related articles

Polymeric composite resins shrink during polymerization, causing stress and microleakage at tooth restoration interfaces. Hygroscopic expansion significantly reduces marginal gaps, but dentinal bonding systems struggle to eliminate microleakage entirely.

Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Restorative Dentistry

Background:

  • Polymeric composite restorative resins undergo polymerization shrinkage, generating stresses at the tooth/restoration interface.
  • This shrinkage can disrupt adhesive bonds, leading to microleakage, particularly at dentine interfaces.
  • Factors like thermal expansion differences and water sorption also influence marginal gap dimensions.

Purpose of the Study:

  • To investigate the phenomenon of polymerization shrinkage in dental restorative resins.
  • To analyze the factors contributing to microleakage at tooth/restoration interfaces.
  • To evaluate the effectiveness of different techniques and material properties in mitigating microleakage.

Main Methods:

  • Analysis of polymerization shrinkage and stress development in composite resins.

Related Experiment Videos

  • Evaluation of microleakage at enamel and dentine interfaces using various restorative techniques.
  • Assessment of the impact of hygroscopic expansion and cavosurface margin design on marginal gaps.

    • Main Results:

    • Tensile and shear stresses develop during polymerization, with light-activated resins showing rapid contraction.
    • Microleakage at enamel interfaces can be eliminated with the acid etch technique, but dentine interfaces remain challenging.
    • Hygroscopic expansion significantly reduces marginal gap dimensions, while occlusal loading increases microleakage.

    Conclusions:

    • Polymerization shrinkage is an inherent challenge in composite restorations, leading to potential microleakage.
    • While no current dentinal bonding system completely eliminates microleakage, strategies like incremental placement and understanding hygroscopic expansion can mitigate the issue.
    • Cavosurface margin design influences marginal gap dimensions, independent of cavity depth.