Seekongpan, P., C. Teanchai, P. Pongprueksa, and P. Senawongse. “Fracture resistance of endodontically treated teeth restored with bulk-fill materials at different depths in root canals”. Mahidol Dental Journal, vol. 42, no. suppl, July 2022, pp. S15-S24, https://he02.tci-thaijo.org/index.php/mdentjournal/article/view/257837.