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Color evaluation of low viscosity bulk-fill resin with composite resin capping layer
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 Title & Authors
Color evaluation of low viscosity bulk-fill resin with composite resin capping layer
Yun, Jonghyeon; Jung, Ji-Hye; Chang, Hoon-Sang;
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Purpose: The purpose of this study was to measure the color of low viscosity bulk-fill resin with a capping layer and to compare it with the color of microhybrid composite resin. Materials and Methods: A low viscosity bulk-fill resin (SDR) and microhybrid composite resin of shade A2 (A2) or A3 (A3) were fabricated to 4 mm thickness and light cured for 20 seconds. CIE values of the resin specimens were measured with a colorimeter. Then shade A2 and A3 microhybrid composite resin was capped over low viscosity bulk-fill resins in 2 mm thickness (SA2, SA3). The resin specimens were light cured for 20 seconds and the color was measured and analyzed (n = 10). Color differences () between SA2 and A2, SA3 and A3 were also calculated. Results: value was highest in SDR followed by SA2 and SA3. value of A2 and A3 was the lowest. value was lowest in SDR followed by SA2 and SA3, and A2 and A3 was the highest. value was lowest in SDR followed by A2 and SA2, and A3 and SA3 was the highest. between A2 and SA2 (), and that between A3 and SA3 () was lower than the perceptible color difference threshold of . Conclusion: between low viscosity bulk-fill resin with a capping layer and microhybrid resin was lower than the perceptible color difference threshold.
low viscosity bulk-fill resin;color;colorimeter;
 Cited by
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