Polymerization efficiency of dental dual-cured resin cement light-cured at various times after the initiation of chemical activation. Issue 10 (2nd July 2020)

• Record Type: Journal Article
• Authors: Shim, Ji Suk; Lee, Soo Young; Song, So-Yeon; Jha, Nayansi; Ryu, Jae Jun
• Is Part Of: International journal of polymeric materials. Volume 69:Issue 10(2020)
• Page Start: 622
• Page End: 628
• Publication Date: 2020-07-02
• Subjects: Dental resin -- dual-cured resin cement -- light-curing -- infrared spectroscopy -- polymerization; Polymers -- Periodicals; Plastics -- Periodicals; 620.19205
• DOI: 10.1080/00914037.2019.1596912
• Languages: English
• ISSNs: 0091-4037

Abstract

Abstract: This study reports the effect of light-exposure timing on the polymerization results of the dental dual-cured resin cement using multiple measurements over time. Specimens were light-polymerized at 5 different delayed time points after mixing the materials: immediate (1 min), 10 min, 30 min, 60 min, and 2 weeks. The degree of conversion (DC) measurement with infrared spectroscopy (IR) measurements and surface hardness test with Vickers diamond indenter was performed. The group that underwent immediate light-curing showed statistically lower DC at 2 weeks compared to groups with provided longer delay time in light-curing. ( p < 0.05). GRAPHICAL ABSTRACT: