Effect of Post- processing Time and Temperature on the Flexural Strength for DLP 3D-Printing Materials

Ramadhan Ibrahim, Ali; Nafea Yaseen, Ihab

doi:10.25130/tjds.13.1.5

	Effect of Post- processing Time and Temperature on the Flexural Strength for DLP 3D-Printing Materials
Tikrit Journal for Dental Sciences
Volume 13, Issue 1, June 2025, Pages 38-44 PDF (454.79 K)
DOI: 10.25130/tjds.13.1.5
Authors
Ali Ramadhan Ibrahim^* ; Ihab Nafea Yaseen
College of Health and Medical Techniques - Baghdad, Middle Technical University, Baghdad, Iraq.
Abstract
The use of three-dimensional (3D) printing in dentistry is appealing, parts made from acrylic-based 3D-printed resin must go through the same light and thermal treatment post-curing procedures to improve their mechanical qualities. This study aims to evaluate the effect of post-curing process by using many degrees from different temperatures and multiple times on the bending strength of 3D printer resin. Twenty-eight samples were fabricated in the current study; the restoration was accomplished through the creation of an STL file using the AutoCAD program and then sent to the program of printer.ASIGA DentaBASE resin at a wavelength of 385-405 nm was used for 3D printing to create samples placed at a right angle to the platform. Post-curing temperatures both 40⁰C and 60⁰C for times that vary (15 min and 30 min), then evaluated flexural properties, the results showed that the post-curing temperature have significant effect on bending strength. The flexural was 130.97±7.2 MPa (mean ± standard deviation) in the group treated at 60 ⁰C for 30 min, more than the values in other groups.The results of this study validate that the post-curing temperature was influenced by the bending property of 3D printed resin, while post-time had no effect except for initial post-curing (15 min).
Keywords
3D; printed flexural strength post; curing pure glycerin

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