Study on Mechanical Properties and Cytotoxicity of 3D Printing Photosensitive Resin

doi:10.13701/j.cnki.kqyxyj.2023.09.013

Abstract

Abstract: Objective: To compare the mechanical properties and cytotoxicity of three different 3D printing photosensitive resins on human gingival fibroblasts (HGFs) so as to provide reference for clinical application. Methods: Three different 3D printing photosensitive resins (WANFAB DC20, T-CRD-141, and MED 610) were selected to make the standard specimens for mechanical properties test and cytotoxicity test, and then the flexural strength, compressive strength, Shore D hardness, and extract fluid were tested. The experimental data were compared and analyzed by single factor analysis of variance and multiple comparison afterwards (LSD test). Results: The flexural strength and compression strength of 3D printing photosensitive resin were MED 610>WANFAB DC20>T-CRD-141, and the Shore D hardness was WANFAB DC20>T-CRD-141>MED 610. The cytotoxicity of WANFAB DC20 was higher than that of T-CRD-141 and MED 610. Conclusion: The flexural and compressive strengths of WANFAB DC20 and T-CRD-141 were significantly lower than that of MED 610, but the Shore D hardness was higher than that of MED 610. The cytotoxicity of WANFAB DC20 was higher than that of T-CRD-141, but its mechanical properties were significantly better than those of T-CRD-141. WANFAB DC20 is the preferential selection of DLP printing materials.

Key words: 3D printing photosensitive resin, mechanical properties, cytotoxicity

ZHANG Mengmeng, CHEN Zijie, HAO Pengjie. Study on Mechanical Properties and Cytotoxicity of 3D Printing Photosensitive Resin[J]. Journal of Oral Science Research, 2023, 39(9): 832-837.

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