Effects of repeated fluoride varnish application on different restorative surfaces

Fouad S. Salama, K. Marche Schulte, Michael F. Iseman, John W. Reinhardt

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Aim: The aim of this study was to assess the effect of repeated (twice) applications of two fluoride varnishes (Duraflor and CavityShield) on the surface micromorphology of a high-viscosity glass ionomer (Fuji IX GP), a compomer (F2000), and a flowable composite (Filtek™ Flow) using a profilometer and scanning electron microscope (SEM). Methods and Materials: Fifteen specimens were prepared from each material, surface roughness (R a) was measured with a profilometer, and an impression was made for epoxy replicas. The fluoride varnishes were applied to the experimental specimens of each material at repeated intervals of 48 hours. For all specimens, Ra was measured and SEM replicas were examined. Results: The final Ra of glass ionomer was 3.49 ± 0.59 (mean ± SD) for CavityShield, 4.69 ± 1.33 for Duraflor, and 2.96 ± 1.53 for the controls. The final Ra of flowable composite was 0.53 ± 0.20 for CavityShield, 2.61 ± 3.08 for Duraflor, and 0.15 ± 0.09 for controls. For glass ionomer and flowable composite, Duraflor was associated with a significantly higher roughness at the final measurement compared to controls (P < 0.05). SEM micrographs showed differing surface topographies which in many specimens confirmed Ra analysis. Conclusion: Fuji IX GP and Filtek™ Flow showed significantly higher roughness after two applications of Duraflor compared to controls.

Original languageEnglish (US)
Pages (from-to)54-61
Number of pages8
JournalJournal of Contemporary Dental Practice
Issue number5
StatePublished - Nov 1 2006


  • Compomers
  • Flowable composite
  • Fluoride varnishes
  • Glass ionomer
  • R
  • Surface roughness

ASJC Scopus subject areas

  • General Dentistry


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