The effect of multi-ion releasing filler contents on the dentin bond strength of an adhesive resin developed for direct pulp-capping

Abstract

We aimed to evaluate the microtensile bond strength (µTBS) of experimentally developed all-in-one adhesives containing surface reaction-type pre-reacted glass-ionomer (S-PRG) filler as a direct pulp-capping agent. Flattened dentin surfaces of extracted human molars were treated with four experimental adhesives of different S-PRG filler content (group 1: 0 wt%, group 2: 13 wt%, group 3: 27 wt% and group 4: 40 wt%) and Fluorobond Shakeone as the control. The beam samples were made and attached to the testing device, placed onto the tabletop-material-tester, and subjected to µTBS test. The data were statistically analyzed using one-way ANOVA. The results demonstrated that the µTBS value of group 2 was significantly lower than that of the control. No other significant differences among the µTBS values of groups and control were observed. It was concluded that the µTBS values of the experimental adhesives were not affected by the S-PRG filler contents except in group 2.

Bioactivity of human dental pulp-derived stem cells with boron-controlled S-PRG filler eluate by anion exchange

“…These results suggested that B has an effect to increase the activity of ALP not only on bone marrow-derived cells but also on dental pulp-derived hDPSCs in the S-PRG filler-derived multi-ion system. Thus, the results above suggest the possibility that S-PRG fillers that slowly release B may contribute to promoting calcification in biological tissues, as well as the possibility that S-PRG fillers may promote mineralisation in dentin adjacent to the dental pulp, such as pulp-capping materials [33][34][35] . In addition, the comparison between E3 and the control medium showed the cell proliferation effect and ALP activity decreased in E3 compared with the control, despite that the concentration of B in the medium was almost the same.…”

The effect of incorporating graphene oxide nanoparticles within self-etch adhesive on the antibacterial properties and shear bond strength

“…Reinforcing the adhesive resin with fillers was expected to improve the mechanical properties and reduces the water sensitivity and solubility which increased the performance of the HL 3,4 . Consequently, many authors investigated the effect of addition of different fillers to dentin adhesives such as hydroxyapatite nanospheres, hydroxyapatite nanoparticles silica nanoparticles graphene oxide pre-reacted glassionomer filler [5][6][7]9,[22][23][24] .…”

Multiple-Ion Releasing Bioactive Surface Pre-Reacted Glass-Ionomer (S-PRG) Filler: Innovative Technology for Dental Treatment and Care

“…S-PRG filler can promote tertiary dentinogenesis. As pulp capping materials, several attempts have been made to incorporate S-PRG filler into adhesives [61,62], self-adhesive resins [63], and inorganic cements [64,65].…”