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European Archives of Paediatric Dentistry

, Volume 17, Issue 1, pp 45–51 | Cite as

Fluoride release and recharging ability of new dental sealants

  • D. DionysopoulosEmail author
  • T. Sfeikos
  • K. Tolidis
Original Scientific Article

Abstract

Aim

This in vitro investigation was to evaluate the fluoride release and recharge abilities of three recently introduced dental fissure sealants (FS).

Methods

Three dental FS were assessed: Teethmate F-1 (Kuraray), Fissurit F (Voco), BeautiSealant (Shofu), and a conventional glass ionomer cement FX-II (Shofu) as a control. Eight cylindrical specimens (7 × 2 mm) of each material were made and immersed individually in 5 ml de-ionized water in plastic containers. Fluoride release of the tested materials was evaluated during the experimental period (28 days) utilising a fluoride ion-selective electrode. At the end of the test period, the specimens were soaked for 5 min in a fluoride solution (0.05 % NaF) and fluoride release was evaluated for the next 5 days. The data were statistically analysed using one-way ANOVA and Bonferroni post hoc test and the level of significance was preset at α = 0.05.

Results

The total fluoride release over the 28-day period for each material was: FX-II (408.6 ± 45.66 μg/cm2) > Teethmate F-1 (89.45 ± 12.32 μg/cm2) > Fissurit F (68.62 ± 8.72 μg/cm2) > BeautiSealant (33.32 ± 4.91 μg/cm2), (p < 0.05). After the re-fluoridation of the specimens with 0.05 % NaF solution the cumulative fluoride re-release during the 5-day period for each material was: FX-II (99.53 ± 13.21 μg/cm2) > Teethmate F-1 (9.76 ± 1.62 μg/cm2) > BeautiSealant (5.69 ± 0.89 μg/cm2) > Fissurit F (4.76 ± 0.72 μg/cm2), (p < 0.05).

Conclusions

The three tested sealants exhibited different capabilities to release and uptake fluoride ions after re-fluoridation but significantly lower than the glass ionomer tested.

Keywords

Dental sealants Fluoride recharge Fluoride release Giomer Glass ionomer Resin-based materials 

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Copyright information

© European Academy of Paediatric Dentistry 2015

Authors and Affiliations

  1. 1.Department of Operative Dentistry, School of DentistryAristotle University of ThessalonikiThessalonikiGreece

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