Thinson, Thitipong, Nantiwat Pholdee, and Kornkamon Sukjit. “Analysis of the Contraction Stresses During the Polymerization Shrinkage of Bulk-Fill Resin Composites and Nanocomposite by Finite Element Method”. Khon Kaen University Dental Journal 22, no. 2 (December 28, 2019): 125–134. Accessed May 9, 2024. https://he01.tci-thaijo.org/index.php/KDJ/article/view/170961.