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

Class IV preparation design for microfilled and macrofilled composite resin.

K J Donly1, R Browning

  • 1University of Iowa College of Dentistry, Iowa City.

Pediatric Dentistry
|January 1, 1992
PubMed
Summary

Chamfered preparations significantly improve fracture resistance for Class IV composite restorations compared to traditional beveled preparations. This finding applies to both microfilled and macrofilled composite resins, enhancing restoration longevity.

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

A compact 2.0 T superconducting magnet.

The Review of scientific instruments·2020
Same author

Vector Potential Photoelectron Microscopy Instrument Design.

Ultramicroscopy·2020
Same author

Slow Acceptance of Universal Antiretroviral Therapy (ART) Among Mothers Enrolled in IMPAACT PROMISE Studies Across the Globe.

AIDS and behavior·2019
Same author

Ultrasound-activated microbubbles as a novel intracellular drug delivery system for urinary tract infection.

Journal of controlled release : official journal of the Controlled Release Society·2019
Same author

How to replace fibrinogen in postpartum haemorrhage situations? (Hint: Don't use FFP!).

International journal of obstetric anesthesia·2017
Same author

Differences among four meat goat breeds for doe fitness indicator traits in the southeastern United States.

Journal of animal science·2017

Area of Science:

  • Dental Materials Science
  • Restorative Dentistry
  • Biomaterials Engineering

Background:

  • The standard preparation for Class IV composite restorations involves an enamel bevel.
  • Optimizing preparation design is crucial for enhancing the mechanical properties and longevity of composite restorations.

Purpose of the Study:

  • To compare the fracture resistance of Class IV composite restorations using chamfered versus beveled enamel preparations.
  • To evaluate the influence of microfilled and macrofilled composite resins on restoration strength.

Main Methods:

  • Forty incisors were prepared with standardized Class IV lesions.
  • Preparations included either a 1.5-mm bevel or a 1.5-mm chamfer.
  • Restorations were made using either microfilled or macrofilled composite resin.

Related Experiment Videos

  • Fracture resistance was determined using an Instron Testing Machine.

    • Main Results:

    • Chamfered preparations demonstrated superior fracture resistance compared to beveled preparations for both composite types.
    • Microfilled composite restorations with beveled preparations showed significantly lower fracture resistance (16.0 ± 4.4 lbs) than chamfered, macrofilled restorations (48.8 ± 14.3 lbs).
    • Macrofilled composite restorations generally exhibited higher fracture resistance than microfilled ones.

    Conclusions:

    • Chamfered preparations enhance the fracture resistance of Class IV composite restorations.
    • The type of composite resin and preparation design significantly impact restoration strength.
    • Chamfered preparations represent a potentially superior alternative to traditional beveled preparations for Class IV restorations.