New adhesive system based in metals cross-linking methacrylate

作者：Cocco Alexandra Rubin; de Oliveira da Rosa Wellington Luiz; Peralta Sonia Luque; Maske Tamires Timm; da Silva Adriana Fernandes; Hartwig Carla Andrade; Mesko Marcia Foster; Piva Evandro; Lund Rafael Guerra

来源：Journal of the Mechanical Behavior of Biomedical Materials, 2018, 77: 519-526.

DOI：10.1016/j.jmbbm.2017.10.010

• Antibacterial adhesive dental
• Mechanical properties
• Chemical properties
• Antibacterial monomers
• Dental materials

This study evaluated the anti-antibiofilm potential of silver methacrylate (Ag) or di-n-butyldimethacrylatetin (Sn) in experimental adhesive systems. Ag and Sn methacrylates were incorporated at 0.5 mol%, 1 mol% and 2 mol% in an adhesive resin. The anti-antibiofilm potential, degree of conversion (DC), microtensile bond strength (mu TBS), water sorption/solubility (W-SR/SL), bonded interfaces pattern (SEM), cytotoxicity and leaching of Ag and Sn ions were evaluated. Data were statistically analyzed considering alpha = 0.05. Only Ag at 2% affected DC and mu TBS. Ag at 1% and 2% and Sn at 1% and 2% showed anti-biofihn potential against Mutans streptococci. Ag at 1% and 2% and Sn at 2% showed a statistically significant difference to the control in W-SR/SL (p < 0.05). The additions of metal methacrylate did not affect cell viability, being the adhesive resins statistically similar to controls. Leached metals of Ag were more than 100x higher than for Sn. Between the concentration tested, Ag and Sn methacrylate at 1% presented an anti-biofihn effect without altering the mechanical properties evaluated.

• 出版日期2018-1