Bioactivity and properties of an adhesive system functionalized with an experimental niobium-based glass

Modifying Adhesive Materials to Improve the Longevity of Resinous Restorations

“…Bioactive glass (BAG), calcium phosphate (CaP), and HA could potentially be used as a source of CaP and as an adjunct to biomimetic remineralization, allow epitaxial deposition of CaP on their external surfaces [83]. The endogenous MMPs fossilized by the growth of apatite mineral, consequently protecting collagen fibrils [85].…”

“…The bioactivity of BAG could be potentiated by doping with specific functional and therapeutic ions, such as zinc, silver, various silica, niobium, fluoride, and copper (Cu), etc. [80,85,87]. For example, incorporation of 30 wt% niobium-based bioactive glass exerts radiopacity to the adhesive system without influencing bioactive properties, microhardness, bond strength, and degree of conversion [85].…”

The use of bioactive particles and biomimetic analogues for increasing the longevity of resin-dentin interfaces: A literature review

“…The incorporation of ion-releasing particles in experimental adhesives shows inconsistent results on the long-term bond strength to dentin. While studies evaluating adhesives containing BAG, CaSi-based or ZnO particles, as well as primers consisting of glass suspensions reported no loss in microtensile bond strength after three or six months of storage (as opposed to the control groups without particles) 19,25,28,29) , others did not find differences between adhesives containing particles and the unfilled controls 21,24,27,35,36) . A study comparing the application of BAG particles to the demineralized dentin surface before the adhesive application or added to the adhesive (30 wt%) led to different outcomes after six months in PBS.…”

“…Ion-releasing ("bioactive") particles have been tested as additives in experimental [18][19][20][21][22][23] and commercial adhesives 24) . Also, they have been applied to acid-etched dentin prior to adhesive application 19,25,26) or used in airabrasion systems for selective caries removal 27) .…”

“…Among the silicabased BAG, the original 45S5 Bioglass, developed by Hench in the late 1960's 33) , is the composition most commonly tested, either unmodified 18,19) , doped with zinc 20,21) , copper 34) , fluoride 22) or treated with polyacrylic acid (PAA) 27) . Other compositions have been tested, including Niobium-based glass 24,25) and a silica-based glass with higher Ca:P molar ratio than 45S5 23) .…”