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The Chinese Journal of Dental Research

Edited by Xu Chen MA

Official journal of the Chinese Stomatological Association

ISSN (print) 1462-6446 • ISSN (online) 1867-5646


Fall 2008
Volume 11 , Issue 2

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Temperature Rise in Resin Composite Samples Polymerised with Different Curing Modes of LEDs

Knezevic, Alena / Tarle, Zrinka / Pichler, Goran / Ban, Ticijana / Mandic, Visnja Negovetic

Pages: 125-129

Objective:To investigate the influence of two new generations of light-emitting diode (LED) curing lights with different curing modes on the temperature rise in resin composite samples during their polymerisation. Methods: Bluephase C8 and Bluephase 16i (Ivoclar Vivadent) LED curing units with different curing programmes (high intensity programme [HIGH], low intensity programme [LOW], and soft-start programme [SOF]) were used for two types of resin composite polymerisation (Tetric Ceram, Tetric EvoCeram; Ivoclar Vivadent). The temperature was measured and recorded at the beginning and at the end of illumination using the ELV Pyroscan (ELV Elektronik) thermometer. Results: Regardless of the resin composite material used, there was a statistically significant difference between the temperature rise in polymerisation with Bluephase C8 and Bluephase 16i LED curing lights under the LOW programme (P = 0.022) and SOF programme (P = 0.033). However, no statistically significant difference was found in polymerisation with Bluephase C8 and Bluephase 16i LED curing lights under the HIGH polymerisation programme. Conclusion: Results from this study showed that the polymerisation programme, not the type of curing light used, was related to the rise in temperature.

Keywords: LED curing unit, polymerisation curing mode, temperature

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