Comparison of Flexural Strength According to Polymerization Time of Photocurable 3D Printing Resin

Objective: This study aims to help in completing highly satisfactory prosthetics by comparing and evaluating the differences in flexural strength of resins manufactured with different light curing times.Methods: After producing the photocurable resin into 12 specimens according to the manufacturer's manual, they were divided into three groups of 5 minutes, 10 minutes, and 15 minutes for light curing, and the flexural strength was compared and evaluated.Results: There was a difference in the flexural strength of the resin depending on the photocuring time.The average value of the flexural strength according to the curing time of the photocurable resin was 85.89 for 5 minutes, 90.89 for 10 minutes, and 103.75 for 15 minutes.The longer the curing time, the higher the flexural strength. Conclusion:From the above results, it was found that the flexural strength of photocurable resin increases as the curing time increases.However, if sufficient flexural strength for clinical application is secured, curing for a long time seems disadvantageous.