Development and Assessment of New Bioactive Glass Fiber Post. Part II: Ion’s Release
Keywords:Dental fiber post, Fiber-reinforced composite, Ions release.
Objectives: This study was designed to develop and assess the ions release property of an innovative
experimental bioactive fiber-reinforce composite as a new material for an intra-canal post.
Study Design: An in vitro study
Materials and Methods: Surface treated unidirectional E-glass fiber were impregnated and implanted with
a triple cure, self-adhesive ACTIVA BioACTIVE resin cement to fabricate an experimental bioactive glass
fiber post using hand lay-up moulding technique and polytetrafluoroethylene (PTFE) moulds, The cylindrical
and rectangular form specimens were prepared, for each specimen, ensure 3min for self-cure setting, then
light-cured for the 40s. The specimens were individually immersed in a deionized (DI) water, and sodium
chloride solution to assess the fluoride ion release, and calcium-phosphate ions release sequentially. Virgin
ACTIVA BioACTIVE cement was used as a reference group for all investigations.
Statistical analysis used: Statistical analysis was achieved by means of independent variable t-test, oneway
ANOVA, and Bonferroni Pairwise comparisons utilizing IBM-SPSS software.
Results: Experimental material recognized a significant reduction in F-, Ca+2, and PO4
3- release after
reinforcement compared to virgin ACTIVA BioACTIVE.
Conclusions: The ACTIVA BioACTIVE cement’s reinforcement process reduced the ion release intensity
of the material but not affected the releasing pattern.
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