IADR Abstract Archives
Adhesion to new CAD/CAM resin blocks
Objectives: This study aimed to evaluate the bond strength between new CAD/CAM resin blocks and adhesive resin cement.
Methods: Four types of CAD/CAM resin blocks namely, Cerasmart 300 (C300, GC Dental Products), Estelite P Block (ESL, Tokuyama Dental), Katana Avencia P Block (AVE, Kuraray Noritake Dental), KZR-CAD HR 3 GANMMATHETA(KZR3, Yamakin) were bonded to stainless steel rods (Φ5mm) with four kinds of adhesive resin cement namely, G-Cem ONE (GC1, GC Dental Products), SA cement plus automix(SA, Kuraray Noritake Dental), Super-Bond (SB, Sun Medical), Estecem2(ETC, Tokuyama Dental) and stored in water at 37 ° C for 24 hours (n=10). The tensile bond strengths were determined using a universal testing machine. After the testing, the average value of the tensile bond strengths was calculated. Then, the fracture surfaces of the blocks were observed by SEM. Data were analyzed statistically by a one-way ANOVA followed by Tukey’s Honestly Significant Difference (HSD) test (α= .05).
Results: The average value of the tensile bond strengths in each condition was summarized in the table. There was no significant difference in the bond strength of the three resin blocks. For combination with 4 types of adhesive resin cement, SB showed the highest adhesion strength to all resin blocks.
Conclusions: It was suggested that the initial adhesive strength varies depending on the combination of resin block and adhesive resin cement.
Methods: Four types of CAD/CAM resin blocks namely, Cerasmart 300 (C300, GC Dental Products), Estelite P Block (ESL, Tokuyama Dental), Katana Avencia P Block (AVE, Kuraray Noritake Dental), KZR-CAD HR 3 GANMMATHETA(KZR3, Yamakin) were bonded to stainless steel rods (Φ5mm) with four kinds of adhesive resin cement namely, G-Cem ONE (GC1, GC Dental Products), SA cement plus automix(SA, Kuraray Noritake Dental), Super-Bond (SB, Sun Medical), Estecem2(ETC, Tokuyama Dental) and stored in water at 37 ° C for 24 hours (n=10). The tensile bond strengths were determined using a universal testing machine. After the testing, the average value of the tensile bond strengths was calculated. Then, the fracture surfaces of the blocks were observed by SEM. Data were analyzed statistically by a one-way ANOVA followed by Tukey’s Honestly Significant Difference (HSD) test (α= .05).
Results: The average value of the tensile bond strengths in each condition was summarized in the table. There was no significant difference in the bond strength of the three resin blocks. For combination with 4 types of adhesive resin cement, SB showed the highest adhesion strength to all resin blocks.
Conclusions: It was suggested that the initial adhesive strength varies depending on the combination of resin block and adhesive resin cement.