IADR Abstract Archives
Shear Bond Strength of a Novel-Adhesive-Resin Cement to Glass Ceramic
Objectives: Measure shear bond strength(SBS) of a novel-adhesive-resin cement to glass ceramic.
Methods: Three different adhesive-resin cements, 1-Experimental Cement(3M); 2-RelyX™ Ultimate(3M); and 3-Variolink®Esthetic(Ivoclar) were used with their correspondent primer system, a-RelyX®Ceramic Primer(3M); b-Experimental Adhesive(3M); c-Scotchbond™ Universal Adhesive(3M) and d-Monobond Plus(Ivoclar). Thirty disc-like specimens of the glass ceramic (e.max CAD) were separated into 5 groups (n=6), prepared by cutting a cad-cam block and firing. The surface of the specimens was etched with HF 5% for 20s and rinsed off with water. The restoration primer was applied subsequently. Stainless-steel rods measuring 4mm in diameter were sandpapered, sandblasted(Rocatec Plus), silanized(ESPE™ Sil) and subsequently cemented under standardized pressure (20g/mm2) onto the etched surface. Excess cement was removed immediately after cementation and an LED curing unit (Elipar Deep Cure) was used to polymerize specimens for 10s from 4 different angles. After light curing, the pressure was relieved, specimens were washed off with distilled water and stored at 36°C in 100% relative humidity for 24h. SBS was performed in a universal testing machine (Zwick Z010) at a crosshead speed of 0.75mm/min. Results were analyzed with ANOVA followed by Tukey HSD test (α=0.05).
Results: Means and standard deviations of SBS values are shown in Figure1 and Table1. All tested specimens failed in adhesive mode. There was a statistically significant difference (p<0.05) in SBS values between the tested groups. Subgroups are identified with letters in Figure1. The group of the Experimental Cement with a RelyX™ Ceramic Primer presented statistically significantly higher (p<0.05) SBS values than all other groups.
Conclusions: Under the limitations of this study, it can be concluded that the Experimental Cement with RelyX™ Ceramic Primer presented SBS values statistically significantly higher than all other groups. The Experimental Cement with the Experimental Adhesive performed as well as RelyX™ Ultimate and Variolink®Esthetic with their dedicated primer systems.
Methods: Three different adhesive-resin cements, 1-Experimental Cement(3M); 2-RelyX™ Ultimate(3M); and 3-Variolink®Esthetic(Ivoclar) were used with their correspondent primer system, a-RelyX®Ceramic Primer(3M); b-Experimental Adhesive(3M); c-Scotchbond™ Universal Adhesive(3M) and d-Monobond Plus(Ivoclar). Thirty disc-like specimens of the glass ceramic (e.max CAD) were separated into 5 groups (n=6), prepared by cutting a cad-cam block and firing. The surface of the specimens was etched with HF 5% for 20s and rinsed off with water. The restoration primer was applied subsequently. Stainless-steel rods measuring 4mm in diameter were sandpapered, sandblasted(Rocatec Plus), silanized(ESPE™ Sil) and subsequently cemented under standardized pressure (20g/mm2) onto the etched surface. Excess cement was removed immediately after cementation and an LED curing unit (Elipar Deep Cure) was used to polymerize specimens for 10s from 4 different angles. After light curing, the pressure was relieved, specimens were washed off with distilled water and stored at 36°C in 100% relative humidity for 24h. SBS was performed in a universal testing machine (Zwick Z010) at a crosshead speed of 0.75mm/min. Results were analyzed with ANOVA followed by Tukey HSD test (α=0.05).
Results: Means and standard deviations of SBS values are shown in Figure1 and Table1. All tested specimens failed in adhesive mode. There was a statistically significant difference (p<0.05) in SBS values between the tested groups. Subgroups are identified with letters in Figure1. The group of the Experimental Cement with a RelyX™ Ceramic Primer presented statistically significantly higher (p<0.05) SBS values than all other groups.
Conclusions: Under the limitations of this study, it can be concluded that the Experimental Cement with RelyX™ Ceramic Primer presented SBS values statistically significantly higher than all other groups. The Experimental Cement with the Experimental Adhesive performed as well as RelyX™ Ultimate and Variolink®Esthetic with their dedicated primer systems.
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