A
BSTRACT
Aim:
The aim of this study was to test the irradiance values of different curing modes of commonly available light cure devices (LCDs).
Materials and Methods:
An
in vitro
investigation was carried out to compare the irradiance output of 10 brands of LCDs available in Saudi Arabia measured using a digital radiometer. Values were recorded for three time points when applicable (0, 10, and 20s). This technique was repeated five times for each LCD. Normal, high-intensity, and soft-start modes were evaluated for all brands with the features available. Irradiance values between brands were analyzed using one-way analysis of variance followed by Bonferroni method. Changes in irradiance between different time points were analyzed using one sample
t
test for normal and high-intensity modes and using paired
t
test for soft-start mode. All comparisons were carried out at 0.05 significance level.
Results:
The highest values were reported for Ortholux Luminous, Elipar DeepCure-S, Elipar DeepCure, and KaVo mini-LED with values above 1000 mW/cm
2
. All LCDs showed values above 600 mW/cm
2
. Three LCDs had high-intensity mode and only one device had soft-start mode. Changes over the different time points were not statistically significant exept for soft-start mode.
Conclusion:
All tested LCDs had irradiance values sufficient for adequate polymerization of resin composite. Only four of these are capable of curing bulk-fill composites.