Publication:
The effect of layered double hydroxide on fluoride release and recharge from a commercial and an experimental resin varnish

dc.contributor.authorTejani, Tameeza Hassanali
dc.contributor.authorMilosevic, Alex
dc.date.accessioned2022-01-19T07:29:41Z
dc.date.available2022-01-19T07:29:41Z
dc.date.issued2021
dc.description.abstractObjectives: Layered Double Hydroxide (LDH) is capable of fluoride anion exchange and release. This study investigated the effects of incorporating ZnAl-LDH in commercial and experimental dental varnishes, on fluoride release and re-release after charging in NaF. Methods: Five discs of each material (commercial ClinproXT varnish and experimental light cured resin varnish), with and without 9%ZnAl-LDH were immersed and agitated in deionised water (DW) at 37◦C. A fluoride ion selective electrode measured fluoride release in DW daily over two-weeks. At 3, 6, 9 and 12 days the discs were recharged in 15 ml 0.05 M NaF solution (37◦C) for five minutes followed by immersion in DW. Energy dispersive X-rayspectra (EDS), weight changes and SEMs were performed on discs, before and after each cycle. Results: Evidence of ZnAl-LDH was confirmed by the presence of peaks for zinc and aluminium in EDS spectra. Cumulative fluoride and mean fluoride released between Clinpro, Clinpro + LDH and resin were significantly different (ANOVA, Tukey’s HSD post-hoc test, p< 0.001) except between the resin and resin + LDH. Mean fluoride concentrations differed significantly after every recharge between Clinpro, Clinpro + LDH and resin, but not betweenthe resin and resin + LDH (p < 0.01). The weights and SEMs of the experimental resins +/-LDH, appeared to be stable whilst the weights of Clinpro samples +/−LDH, fluctuated and fragmented. Significance: ClinproXT and experimental resin containing ZnAl-LDH recharged with fluoride did not significantly increase fluoride release compared to the unmodified materials. However, all LDH-F incorporated materials demonstrated fluoride recharging properties which appear beneficial to dentistry and thus further work is required to improve these properties.en_US
dc.identifier.other304-2021.23
dc.identifier.urihttps://repository.mbru.ac.ae/handle/1/765
dc.language.isoenen_US
dc.subjectLayered double hydroxidesen_US
dc.subjectResin modified glass ionomeren_US
dc.subject(RMGIC) varnishen_US
dc.subjectExperimental light cured resinen_US
dc.subjectVarnishen_US
dc.subjectFluoride ion selective electrodeen_US
dc.subjectFluoride rechargeen_US
dc.subjectReleaseEnergy dispersive X-rayen_US
dc.subjectSpectroscopyen_US
dc.subjectScanning electron microscopyen_US
dc.titleThe effect of layered double hydroxide on fluoride release and recharge from a commercial and an experimental resin varnishen_US
dc.typeArticleen_US
dspace.entity.typePublicationen_US

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