IADR Abstract Archives
Bonding Property of Resin Cement to Saliva Contaminated Tooth
Objectives: Resin cement bond strength can be increased by using pretreatment agents such as tooth primer, prosthesis primer, or bonding agent. On the other hand, contamination on adhesive surface by saliva or blood may decrease adhesive strength. This contamination may critically affect polymerization and bonding properties of resin cements. The aim of this study was to evaluate the bonding property of several resin cement systems with saliva contamination.
Methods: Resin cement systems with light-curing bonding agent (G-CEM ONE with G-Premio Bond (GCB, GC) and RelyX Universal with Scotchbond Universal Plus Adhesive (RXU, 3M)) and same materials with self-curing primer (G-CEM ONE with G-CEM ONE Adhesive Enhancing Primer (GCA, GC) and PANAVIA V5 with PANAVIA V5 Tooth Primer (PV5, Kuraray)) were used. Surfaces of bovine anterior teeth were flattened with 600-grit abrasive paper and divided into two groups, control and saliva contaminated. Bonding area (3.0mm-diameter) and cement thickness (0.1mm-thickness) were defined by plastic-sticker. Stainless-steel-rod was adhered according to the manufacturer’s instruction and specimens were stored at 37 degrees 100%R.H. for 1hour. Then, specimens were stored in water at 37 degrees for 23 hours for self-polymerization. Shear Bond Strength (SBS) was measured by Universal testing machine (SHIMADZU AG-IS) [Crosshead-speed 1mm/min, n=5, statistically analyzed (2-way ANOVA followed by Tukey test, α=0.05)].
Results: Excluding PV5, there were no significant differences in SBS between groups with and without saliva contamination. GCA showed the highest SBS and GCB showed the second highest SBS with or without saliva contamination.
Conclusions: Although there were differences between resin cement systems' bond strength in self-adhesive primer and light-curing bonding agent groups, there was no significant difference in G-CEM ONE between both pretreatment agent choices. G-CEM ONE can be considered a favorable choice that can provide simplicity in material selection, system flexibility and clinical reliability.
Methods: Resin cement systems with light-curing bonding agent (G-CEM ONE with G-Premio Bond (GCB, GC) and RelyX Universal with Scotchbond Universal Plus Adhesive (RXU, 3M)) and same materials with self-curing primer (G-CEM ONE with G-CEM ONE Adhesive Enhancing Primer (GCA, GC) and PANAVIA V5 with PANAVIA V5 Tooth Primer (PV5, Kuraray)) were used. Surfaces of bovine anterior teeth were flattened with 600-grit abrasive paper and divided into two groups, control and saliva contaminated. Bonding area (3.0mm-diameter) and cement thickness (0.1mm-thickness) were defined by plastic-sticker. Stainless-steel-rod was adhered according to the manufacturer’s instruction and specimens were stored at 37 degrees 100%R.H. for 1hour. Then, specimens were stored in water at 37 degrees for 23 hours for self-polymerization. Shear Bond Strength (SBS) was measured by Universal testing machine (SHIMADZU AG-IS) [Crosshead-speed 1mm/min, n=5, statistically analyzed (2-way ANOVA followed by Tukey test, α=0.05)].
Results: Excluding PV5, there were no significant differences in SBS between groups with and without saliva contamination. GCA showed the highest SBS and GCB showed the second highest SBS with or without saliva contamination.
Conclusions: Although there were differences between resin cement systems' bond strength in self-adhesive primer and light-curing bonding agent groups, there was no significant difference in G-CEM ONE between both pretreatment agent choices. G-CEM ONE can be considered a favorable choice that can provide simplicity in material selection, system flexibility and clinical reliability.