Effect of Light Curing Modes of High-Powered LEDs on Temperature Rise under Primary Teeth Dentin (An In Vitro Study)

Background: Temperature rise in the pulp chamber is a severe stress that can cause irreversible damage to pulp. This study aimed evaluate effect of three curing modes high-powered LED and two remining dentin thicknesses on temperature under primary teeth dentin. Methods: One disc 1 mm thickness were prepared from human molar. The was exposed light using for 10 s simulate bonding agent polymerization (stage curing). Five specimens resin composite cured 20 s. different tested standard, ramp, pulse mode (n=5). After grinded 0.5 thick experiments repeated. change data subjected analysis variance (ANOVA) Tukey's test. Results: highest observed 0.5-mm-thick with standard (7.6±0.234; 4.78±0.4207), whereas lowest values recorded 1-mm-thick (4.8±0.458; 3.16±0.829) during stage polymerization, respectively. Pulse produced significantly lower compared all conditions (P<0.05). An inverse proportion found between mean thickness. Conclusions: High-powered LEDs should not be used cure agents deep cavities. maximum induced by critical pulpal health. related modes.