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

Composite photopolymerization with diode laser.

Alena Knezevic1, Mira Ristic, Nazif Demoli

  • 1Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, Zagreb, Croatia. ma505ak@yahoo.com

Operative Dentistry
|June 9, 2007
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

Stability of flexural properties of experimental composites functionalized with bioactive glass under chemical and thermal accelerated aging.

Journal of dentistry·2026
Same author

Filler amount influences long-term mechanical stability of experimental dental composites.

Dental materials : official publication of the Academy of Dental Materials·2026
Same author

Artificial aging-induced changes in surface properties of experimental bioactive glass-containing composites.

Journal of dentistry·2026
Same author

New Universal Bulk-Fill Composites with Translucency Shift: Impact of Rapid Curing and Ageing on Polymerisation and Mechanical Properties.

Materials (Basel, Switzerland)·2025
Same author

The Role of Rapid Curing on the Interrelationship Between Temperature Rise, Light Transmission, and Polymerisation Kinetics of Bulk-Fill Composites.

International journal of molecular sciences·2025
Same author

Comparing ISO 4049 and Fourier-transform infrared spectroscopy for assessing ambient light sensitivity in dental resin composites.

Scientific reports·2025
Same journal

Academy of Operative Dentistry: Award of Excellence.

Operative dentistry·2026
Same journal

Effects of Charcoal-Based Mouthwashes on Color Change and Surface Roughness of a Stained Resin Composite.

Operative dentistry·2026
Same journal

Influence of Endodontic Access and Thermocycling on the Fracture Resistance of CAD/CAM Lithium Disilicate Anterior Crowns.

Operative dentistry·2026
Same journal

Color Match of Single-Shade and Group-Shade Resin Composites: A Visual and Instrumental Analysis.

Operative dentistry·2026
Same journal

Effect of Surface Treatment on the Characterization Layer of 3D-Printed and CAD/CAM Resin Composite Materials.

Operative dentistry·2026
Same journal

Cuspal Coverage Direct Resin Composite Restorations for Cracked Teeth: A Five-Year Clinical Study.

Operative dentistry·2026
See all related articles

High-intensity LED curing lights and blue diode lasers improve composite conversion. Tetric EvoCeram showed lower conversion rates across all tested light sources and modes.

Area of Science:

  • Dental Materials Science
  • Polymer Chemistry
  • Biomaterials Engineering

Background:

  • Traditional light curing methods for dental composites are time-consuming.
  • Advancements in curing technology include high-power devices like LED and lasers.
  • Optimizing polymerization is crucial for restoration longevity and performance.

Purpose of the Study:

  • To compare the degree of conversion (DC) of two composite materials using different light-curing modes.
  • To evaluate the effectiveness of a Bluephase 16i LED curing unit and a blue diode laser.
  • To assess the impact of various polymerization modes (high, low, soft) on composite conversion.

Main Methods:

  • Fourier Transform Infrared Spectroscopy (FT-IR) was used to measure the degree of conversion.

Related Experiment Videos

  • Two composite materials, Tetric Ceram and Tetric EvoCeram, were tested.
  • Polymerization was performed using a Bluephase 16i LED unit (three modes) and a blue diode laser (50 mW output, 35 mW/cm² intensity).
  • Statistical analyses included descriptive statistics, t-test, ANOVA, Pearson Correlation, and Tukey Post hoc tests.

    • Main Results:

    • All photopolymerization modes of the LED curing unit resulted in a higher degree of conversion compared to the laser.
    • No significant difference in DC was observed between the LED unit and 50-second laser polymerization.
    • Tetric EvoCeram consistently exhibited a lower degree of conversion irrespective of the light source or polymerization mode.

    Conclusions:

    • LED curing units, particularly in high-intensity modes, offer efficient polymerization for dental composites.
    • Blue diode lasers provide comparable conversion to LED units under specific conditions (50-second exposure).
    • Material selection is critical, as Tetric EvoCeram demonstrates inherently lower conversion, potentially impacting clinical outcomes.