BiominF® Paste Improves Bond Durability and Remineralize Tooth Structure Prior to Adhesive Restoration

Objectives: BiominF® is a fluoride bioactive glass that was recently introduced into tooth pastes with the aim of remineralizing dental lesions. The current study aimed at examining the use of a BiominF® paste as a temporary filling material capable of decreasing a simulated dentinal fluids pressure on the resin/dentin interface. Moreover, the acid resistance of an enamel/resin interface was examined after applying the BiominF® temporary filling.
Methods: Dentin discs were obtained from the mid coronal part of 40 extracted human non-carious third molars. Direct communication to the pulp chamber was created by cutting at a level approximately 1 mm below the cemento-enamel junction. The dentin specimens were exposed to a demineralization challenge for 4 days creating a sub-surface demineralized zone. Moreover, the dentin surface was exposed to a simulated pulpal pressure. The dentin surfaces had BiominF® paste or an oxalate desensitizing agent applied followed by application of Universal bond Quick (Kuraray, Japan) and Filtek™ Supreme Ultra Universal (3M, USA).
For the acid resistance of the enamel interface the enamel surfaces were demineralized for 4 days to create a subsurface demeneralized zone followed by applying BiominF® or 1.23 % acidulated phosphate fluoride.
Shear bond strength of the dentin and enamel specimens were conducted , moreover, transmicro radiography technique was used to assess the remineralization capacity of the BiominF® paste to the enamel and dentin surfaces.
Results: One way ANOVA showed that the bond strength of the enamel and dentin surfaces treated by the BiominF® was not affected p<0.05. Trans microradiography analysis that BiominF® significantly remineralized the enamel and dentin subsurface lesions p<0.05.
Conclusions: The BiominF® temporary filling improves the durability of adhesive restorations through its remineralizing capacity to enamel and dentin surfaces after cavity preparation and its ability to decrease the effect of pulpal pressure at the resin/dentin interface.