| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
The purpose of this study was to find a solution to the early detachment of the CAD/CAM resin crowns by studying the polymer reaction of the adhesive resin cement from various angles. Since the polymerization reaction of resin cement is a radical reaction, the amount of free radicals produced was evaluated using electron spin resonance (ESR), and the kinetics of polymerization was evaluated. In addition, the correlation with the degree of conversion(DC) and Vickers hardness was determined. At the same time, the effect of polymerization inhibitors on the mechanical strength of resin cement was also evaluated. Specimens were prepared by mixing the cement paste with or without adhesive primer, and/or light-curing.
Therefore, it is suggested that application of the adhesive primer is beneficial to achieve higher DC and mechanical property of self-adhesive resin cement by enhancing free radical reactions.
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