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

Does layering minimize shrinkage stresses in composite restorations?

R H Kuijs1, W M M Fennis, C M Kreulen

  • 1(PCT 117) Department of Preventive and Community Dentistry and Pedodontology, University Medical Centre Nijmegen, PO Box 9101, 6500 HB Nijmegen, The Netherlands. R.Kuijs@dent.umcn.nl

Journal of Dental Research
|November 25, 2003
PubMed
Summary

Layering resin composite restorations may not significantly reduce stress compared to bulk techniques. Chemically cured composites exhibited the least polymerization shrinkage stress in dental restorations.

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 intact meniscus and an artificial meniscus prosthesis both act as a shock absorber in the knee joint.

The Knee·2026
Same author

[Indirect adhesive bridges in the lateral parts].

Nederlands tijdschrift voor tandheelkunde·2024
Same author

[Resin-bonded fixed partial dentures in the anterior area].

Nederlands tijdschrift voor tandheelkunde·2024
Same author

Exploring healthy knee kinematic phenotypes obtained through dynamic CT imaging: A cluster analysis study.

Journal of biomechanics·2024
Same author

Challenges in conducting clinical research in primary care dentistry.

Journal of dentistry·2024
Same author

[Root canal post for build-up restorations: necessary or redundant?]

Nederlands tijdschrift voor tandheelkunde·2024

Area of Science:

  • Dental Materials Science
  • Biomaterials Engineering
  • Restorative Dentistry

Background:

  • Polymerization shrinkage in resin composites can compromise the longevity of dental restorations.
  • Minimizing stress in the tooth-restoration complex is crucial for clinical success.

Purpose of the Study:

  • To compare polymerization shrinkage stresses between different direct resin composite restorative techniques for cusp-replacing restorations.
  • To evaluate the influence of layering versus bulk filling methods on stress development.

Main Methods:

  • A 3-D finite element (FE) model was utilized to simulate the dynamic polymerization shrinkage process.
  • Time-dependent material properties including shrinkage, viscosity, elastic modulus, and creep were implemented.
  • Six restorative procedures were simulated: one chemically cured bulk technique, one light-cured bulk technique, and four light-cured layering techniques.

Related Experiment Videos

Main Results:

  • Chemically cured composites demonstrated the lowest resulting stress when polymerization shrinkage was considered.
  • Observed differences in stress among various light-cured layering techniques were less pronounced than anticipated.
  • The primary stress-bearing locations were identified at the interface and the cervical region of the remaining cusp.

Conclusions:

  • The study suggests that chemically cured composites may offer advantages in managing polymerization shrinkage stress.
  • The anticipated stress reduction benefits of layering techniques over bulk filling were not significantly demonstrated in this simulation.
  • Understanding stress distribution is vital for designing durable cusp-replacing restorations.