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Irradiance of different curing modes of common light cure devices: An in vitro study
Hani M Nassar1, Mahmoud Almutairi2, Albaraa Makhdom2
1 Department of Restorative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
2 Al-Farabi Private College, Jeddah, Saudi Arabia
Correspondence Address:
Hani M Nassar,
Department of Restorative Dentistry, Faculty of Dentistry, King Abdulaziz University, P.O.Box 80209, Jeddah 21589.
Saudi Arabia
 Source of Support: None, Conflict of Interest: None DOI: 10.4103/jispcd.JISPCD_496_19
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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/cm2. All LCDs showed values above 600 mW/cm2. 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. |
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