The effect of fluoride varnish on enamel shear bond strength of pit and fissure sealants

Research output: Contribution to journalArticle

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Abstract

Purpose: The purpose of this study was to determine the effects of fluoride varnish on the enamel shear bond strength of pit and fissure sealants. Methods: Ninety-six teeth were divided into three duplicated test groups: sealant (S)/sealant thermocycle (ST) received Clinpro Sealant only; varnish sealant (VS)/varnish sealant thermocycle (VST) received five percent sodium fluoride (NaF) varnish plus sealant (VPS); and VPS/VPS thermocycle (VPST) received NaF, polish with Clinpro Prophy Paste, plus sealant. One set of each group (ST, VST, VPST) was thermocycled to represent aging, and one set (S, VS, PVS) was not. The shear bond strengths for the thermocycled groups and nonthermocycled groups were determined, and two-way analysis of variance tested the effects of thermocycling and varnish. Results: Thermocycling did not have a significant effect on the peak stresses of the groups (P=0.0552), so sets were combined. The peak stress for S/ST was significantly higher than for VS/VST (P<0.0001). The peak stress for VPS/VPST was significantly higher than for VS/VST (P<0.0001). The peak stress for S/ST was significantly higher than VPS/VPST (P=0.025). Conclusion: Fluoride varnish applied immediately before pit and fissure sealant placement negatively affected the shear bond strength of the sealant. Mechanically cleaning a fluoride varnish-coated tooth with prophy paste did not provide pit and fissure sealant enamel shear bond strengths comparable to those of untreated enamel.

Original languageEnglish (US)
Pages (from-to)155-158
Number of pages4
JournalPediatric Dentistry
Volume39
Issue number2
StatePublished - Mar 1 2017

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Topical Fluorides
Pit and Fissure Sealants
Shear Strength
Paint
Dental Enamel
Ointments
Tooth
Industrial Oils
Sodium Fluoride

Keywords

  • Fluoride Varnish
  • Sealants
  • Shear Bond Strength

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

The effect of fluoride varnish on enamel shear bond strength of pit and fissure sealants. / Frazer, Rebecca A.; Platt, Jeffrey; Sanders, Brian; Yepes, Juan; Jones, James.

In: Pediatric Dentistry, Vol. 39, No. 2, 01.03.2017, p. 155-158.

Research output: Contribution to journalArticle

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abstract = "Purpose: The purpose of this study was to determine the effects of fluoride varnish on the enamel shear bond strength of pit and fissure sealants. Methods: Ninety-six teeth were divided into three duplicated test groups: sealant (S)/sealant thermocycle (ST) received Clinpro Sealant only; varnish sealant (VS)/varnish sealant thermocycle (VST) received five percent sodium fluoride (NaF) varnish plus sealant (VPS); and VPS/VPS thermocycle (VPST) received NaF, polish with Clinpro Prophy Paste, plus sealant. One set of each group (ST, VST, VPST) was thermocycled to represent aging, and one set (S, VS, PVS) was not. The shear bond strengths for the thermocycled groups and nonthermocycled groups were determined, and two-way analysis of variance tested the effects of thermocycling and varnish. Results: Thermocycling did not have a significant effect on the peak stresses of the groups (P=0.0552), so sets were combined. The peak stress for S/ST was significantly higher than for VS/VST (P<0.0001). The peak stress for VPS/VPST was significantly higher than for VS/VST (P<0.0001). The peak stress for S/ST was significantly higher than VPS/VPST (P=0.025). Conclusion: Fluoride varnish applied immediately before pit and fissure sealant placement negatively affected the shear bond strength of the sealant. Mechanically cleaning a fluoride varnish-coated tooth with prophy paste did not provide pit and fissure sealant enamel shear bond strengths comparable to those of untreated enamel.",
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AU - Jones, James

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N2 - Purpose: The purpose of this study was to determine the effects of fluoride varnish on the enamel shear bond strength of pit and fissure sealants. Methods: Ninety-six teeth were divided into three duplicated test groups: sealant (S)/sealant thermocycle (ST) received Clinpro Sealant only; varnish sealant (VS)/varnish sealant thermocycle (VST) received five percent sodium fluoride (NaF) varnish plus sealant (VPS); and VPS/VPS thermocycle (VPST) received NaF, polish with Clinpro Prophy Paste, plus sealant. One set of each group (ST, VST, VPST) was thermocycled to represent aging, and one set (S, VS, PVS) was not. The shear bond strengths for the thermocycled groups and nonthermocycled groups were determined, and two-way analysis of variance tested the effects of thermocycling and varnish. Results: Thermocycling did not have a significant effect on the peak stresses of the groups (P=0.0552), so sets were combined. The peak stress for S/ST was significantly higher than for VS/VST (P<0.0001). The peak stress for VPS/VPST was significantly higher than for VS/VST (P<0.0001). The peak stress for S/ST was significantly higher than VPS/VPST (P=0.025). Conclusion: Fluoride varnish applied immediately before pit and fissure sealant placement negatively affected the shear bond strength of the sealant. Mechanically cleaning a fluoride varnish-coated tooth with prophy paste did not provide pit and fissure sealant enamel shear bond strengths comparable to those of untreated enamel.

AB - Purpose: The purpose of this study was to determine the effects of fluoride varnish on the enamel shear bond strength of pit and fissure sealants. Methods: Ninety-six teeth were divided into three duplicated test groups: sealant (S)/sealant thermocycle (ST) received Clinpro Sealant only; varnish sealant (VS)/varnish sealant thermocycle (VST) received five percent sodium fluoride (NaF) varnish plus sealant (VPS); and VPS/VPS thermocycle (VPST) received NaF, polish with Clinpro Prophy Paste, plus sealant. One set of each group (ST, VST, VPST) was thermocycled to represent aging, and one set (S, VS, PVS) was not. The shear bond strengths for the thermocycled groups and nonthermocycled groups were determined, and two-way analysis of variance tested the effects of thermocycling and varnish. Results: Thermocycling did not have a significant effect on the peak stresses of the groups (P=0.0552), so sets were combined. The peak stress for S/ST was significantly higher than for VS/VST (P<0.0001). The peak stress for VPS/VPST was significantly higher than for VS/VST (P<0.0001). The peak stress for S/ST was significantly higher than VPS/VPST (P=0.025). Conclusion: Fluoride varnish applied immediately before pit and fissure sealant placement negatively affected the shear bond strength of the sealant. Mechanically cleaning a fluoride varnish-coated tooth with prophy paste did not provide pit and fissure sealant enamel shear bond strengths comparable to those of untreated enamel.

KW - Fluoride Varnish

KW - Sealants

KW - Shear Bond Strength

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