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Effects of adhesive and primer on the bonding strength of zirconia to resin cement / 华西口腔医学杂志
West China Journal of Stomatology ; (6): 376-379, 2020.
Article in Chinese | WPRIM | ID: wpr-827528
ABSTRACT
OBJECTIVE@#This study aimed to compare the effects of water storage treatment and thermal cycling on the shear bond strength (SBS) of three self-adhesive dual-cure resin cements.@*METHODS@#Six cubic zirconia specimens with side length of 2 cm were obtained by cutting and sintering. Three self-adhering dual-cure resin cements (i.e., Clearfil SAC, RelyX U200, and Multilink Speed) were selected. According to their bonding modes, they were divided into three groups direct bonding group (direct coating with resin cement), adhesive group (applying universal adhesives and then coating with resin cement), and primer group (applying Z-Prime Plus and then coating with resin cement). According to experimental conditions, each group was divided into two subgroups subgroup a (water storage at 37 ℃ for 24 h) and subgroup b (thermalcycling for 5 000 times). SBS data were analyzed by one-way ANOVA by using SPSS 19.0 software (P0.05). After thermalcycling, the SBS of the three types of resin cements decreased (P<0.05); the SBS of the adhesive group was higher than that of the direct adhesive group and the primer group (P<0.05). Fracture mode analysis revealed that the type Ⅲ fracture mode evidently increased after the thermalcycling treatment compared with the water storage treatment.@*CONCLUSIONS@#The universal adhesives and the primer can improve the SBS of self-adhesive dual-cure resin cement in water storage at 37 ℃ for 24 h. The universal adhesives had a better bonding durability than the zirconia primer.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Surface Properties / Zirconium / Materials Testing / Ceramics / Dental Bonding / Resin Cements / Dental Cements / Shear Strength / Dental Stress Analysis Language: Chinese Journal: West China Journal of Stomatology Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Surface Properties / Zirconium / Materials Testing / Ceramics / Dental Bonding / Resin Cements / Dental Cements / Shear Strength / Dental Stress Analysis Language: Chinese Journal: West China Journal of Stomatology Year: 2020 Type: Article