2025 Volume 37 Issue 2 Pages 129-135
Purpose : Recently, adhesive resin cements are widely used in clinical practice. However, their color stability significantly affects esthetics outcomes for metal-free restoration. This study aimed to evaluate the color changes of four adhesive resin cements after immersion for 1 week and 4 weeks in purified water and black tea using a chroma meter.
Methods : Four adhesive resin cements were used : a self-adhesive resin composite type resin cement : SA Luting Multi (SA, Kuraray Noritake Dental) ; two traditional resin composite type resin cements : PANAVIA V5 (PV, Kuraray Noritake Dental) and Calibra Ceram (CC, Dentsply Sirona) ; and a 4-META/MMA-TBB resin cement : Super-Bond (SB, Sun Medical). Each cement was filled into a ⌀15×3 mm mold and was polymerized. The disc-shaped cement specimens were polished with silicon-carbide paper up to #2000 grit. Then, the baseline color data was measured by a chroma meter. Half of the specimens were immersed in purified water (W), and the other half of the specimens were immersed in black tea (T). The color of each specimen was measured at 1 week (1 w) and 4 weeks (4 w) after immersion. The ΔE*ab data was calculated and analyzed statistically by 2-way ANOVA, Tukey’s q-test, and paired t-test.
Results : Focusing on the immersion period, significant differences were observed between 1 w and 4 w values in SA, CC, and SB in the W group. On the other hand, all systems indicated a significant difference in the T group. In terms of the effect of adhesive resin cement, significant differences were indicated between SB and other cements, CC-SA and -PV for the 1 w value in the W group. For the 4 w value in the W group, significant differences were indicated between SB and other cements. On the other hand, in the T group, significant differences were indicated between SB and other cements at 1 w. At 4 w in the T group, significant differences were indicated between SA-CC and -SB.
Conclusion : It was considered that the color change of adhesive resin cement was influenced by the absorption of solution used for immersion, filler content and employed monomers of each adhesive resin cement, and types of solutions for immersion.
