IADR Abstract Archives
Bond strength between a bulkfill Resin and different adhesives
Objectives: To compare the values of microtensile bond strenght by a RC Bulkfill using three differents brands of adhesives.
Methods: A total of 3 RC bulkfill blocks were made in silicone standard model. The process was made in three stages, consisted of a block of RC, adhesive application and placement of another block of RC. The whole polymerization process was realized with a high intensity lamp for 40 sec per block. Depending on the brand of adhesive were divided into 3 groups randomly, Single Bond Universal, 3M ESPE (BK-SBU), Tetric N-Bond Universal, Ivoclar Vivadent (BK-AdSE) y Optibond All in One, Kerr Co. (BK-ALLOne). All blocks were made in the same session. After 48 hr blocks were cut through a universal trimmer (Isomet 1000) under constant cooling, and the slice thickness was checked with a caliper gauge. There were obtained 30 bars of each group that were the samples (n = total 90), 30 samples per group of 1x1x10m, wich were subjected to microtensile test (Instron). The data were expressed by newton and analyzed with Shapiro Wilck, Kruskal Wallis and Mann-Whitney test, with a confidence of 95%.
Results: Median and standard deviation (±) was for BK-SBU 34,95 (±10,46), BK-AdSE 40,85 (±10,97), ALLOne 29,85 (±9,89), there significant difference for groups BK-AdSE/BK-ALLOne (p<0.05), not like groups BK-SBU/BK-AdSE y BK-SBU/BK-ALLOne.
Conclusions: There was no significant difference in microtensile strength between the RC Bulkfill together with different adhesives except among the BK-ADSE / BK-ALLONE groups with lower values for the BK-ALLONE group.
Methods: A total of 3 RC bulkfill blocks were made in silicone standard model. The process was made in three stages, consisted of a block of RC, adhesive application and placement of another block of RC. The whole polymerization process was realized with a high intensity lamp for 40 sec per block. Depending on the brand of adhesive were divided into 3 groups randomly, Single Bond Universal, 3M ESPE (BK-SBU), Tetric N-Bond Universal, Ivoclar Vivadent (BK-AdSE) y Optibond All in One, Kerr Co. (BK-ALLOne). All blocks were made in the same session. After 48 hr blocks were cut through a universal trimmer (Isomet 1000) under constant cooling, and the slice thickness was checked with a caliper gauge. There were obtained 30 bars of each group that were the samples (n = total 90), 30 samples per group of 1x1x10m, wich were subjected to microtensile test (Instron). The data were expressed by newton and analyzed with Shapiro Wilck, Kruskal Wallis and Mann-Whitney test, with a confidence of 95%.
Results: Median and standard deviation (±) was for BK-SBU 34,95 (±10,46), BK-AdSE 40,85 (±10,97), ALLOne 29,85 (±9,89), there significant difference for groups BK-AdSE/BK-ALLOne (p<0.05), not like groups BK-SBU/BK-AdSE y BK-SBU/BK-ALLOne.
Conclusions: There was no significant difference in microtensile strength between the RC Bulkfill together with different adhesives except among the BK-ADSE / BK-ALLONE groups with lower values for the BK-ALLONE group.