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Updated: Jul 3, 2026
16:30
Application of Light-cured Dental Adhesive Resin for Mounting Electrodes or Microdialysis Probes in Chronic Experiments
Published on: July 30, 2007
Should my new curing light be an LED?
Sibel A Antonson1, Donald E Antonson, Patrick C Hardigan
1Department of Restorative Dentistry, School of Dental Medicine, State University of New York at Buffalo, Buffalo, NY, USA. sibel.anstonson@ivoclarvivadent.us
Operative Dentistry
|August 1, 2008
Summary
New LED curing lights show improved performance. The FLASH-lite 1401 demonstrated superior depth of cure at 10 and 20 seconds, with 40 seconds optimal for all units.
Area of Science:
- Dental Materials Science
- Photopolymerization Technology
- Biomedical Engineering
Background:
- Advancements in light-curing technology are crucial for dental restorative procedures.
- New generation Light Emitting Diode (LED) curing lights offer enhanced efficiency over older technologies.
- Comparative studies are needed to validate the performance of emerging LED curing units.
Purpose of the Study:
- To compare the depth of cure achieved by ten new-generation LED curing light units.
- To evaluate curing performance against a high-powered halogen curing light.
- To determine optimal curing times for LED light units based on depth of cure.
Main Methods:
- Depth of cure was measured for 10 LED units and one halogen unit (Optilux 501) following the ANSI/ADA No. 27 standard.
- Measurements were taken at 10, 20, and 40-second intervals, with 10 samples per group (total 660 samples).
- Statistical analysis included a full factorial ANOVA and Tukey's HSD test.
Main Results:
- The FLASH-lite 1401 exhibited significantly superior depth of cure compared to other tested lights at 10- and 20-second intervals (p<0.01).
- Exposure times of 20 seconds or longer consistently resulted in a better depth of cure for all units.
- Optimal polymerization time for maximum depth of cure was found to be 40 seconds across all evaluated curing light units.
Conclusions:
- New generation LED curing lights offer significant improvements in curing performance.
- The FLASH-lite 1401 stands out for its rapid and effective curing capabilities.
- A minimum exposure of 20 seconds, with 40 seconds being optimal, is recommended for achieving adequate depth of cure with these devices.
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