Effects of daily topical fluoride gels on resin composite degradation and wear.

K. Kula, J. E. McKinney, T. J. Kula

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

OBJECTIVES: This in vitro study compares the effects of professional and consumer-applied topical fluorides on the weight, wear resistance and surface appearance of a resin composite containing barium boroaluminosilicate glass filler particles. METHODS: Prior to wear studies with a pin and disc apparatus, specimens were immersed for 6 min 10 times in water, three consumer-applied topical fluorides (1.1% NaF, 0.4% SnF2, or 0.5% APF gel) or a professionally applied topical fluoride (1.23% APF gel). Specimens were weighed before and after each immersion. Following wear studies, the specimen surfaces were visually evaluated using scanning electron microscopy. Weight changes were analyzed for significant differences using one-way ANOVA and Duncan's multiple range test (p = 0.01). Values of wear parameters were ranked and tested for significance using one-way ANOVA with least squares mean contrast (p = 0.05). RESULTS: Significant differences were found in the weight loss of specimens treated with different fluoride agents: 1.23% APF = 0.5% APF > 0.4% SnF2 > 1.1% NaF = water (p <or = 0.0001). Significant differences in initial wear depth (S(i)) occurred in the following samples: 1.23% APF > 1.1% NaF = 0.5% APF (p = 0.04). Scanning electron micrographs showed variable wear tracks on the specimen surfaces. The specimen surfaces outside the wear track were smooth for those treated with water or with NaF; the surfaces outside the wear track of specimens treated with APF showed extensive loss of filler particles. SIGNIFICANCE: Topical APF agents caused extensive loss of filler from the resin composite specimens whereas 1.1% NaF caused the least damage. Although significant differences in surface wear resistance were detected, clinical studies are needed to determine the effect of topical fluorides on the properties of this resin composite.

Original languageEnglish (US)
Pages (from-to)305-311
Number of pages7
JournalDental Materials
Volume13
Issue number5
StatePublished - Sep 1997
Externally publishedYes

Fingerprint

Topical Fluorides
Composite Resins
Gels
Resins
Wear of materials
Degradation
Composite materials
Water
Fillers
Analysis of Variance
Analysis of variance (ANOVA)
Weights and Measures
Wear resistance
Immersion
Least-Squares Analysis
Fluorides
Electron Scanning Microscopy
Weight Loss
Electrons
Barium

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Kula, K., McKinney, J. E., & Kula, T. J. (1997). Effects of daily topical fluoride gels on resin composite degradation and wear. Dental Materials, 13(5), 305-311.

Effects of daily topical fluoride gels on resin composite degradation and wear. / Kula, K.; McKinney, J. E.; Kula, T. J.

In: Dental Materials, Vol. 13, No. 5, 09.1997, p. 305-311.

Research output: Contribution to journalArticle

Kula, K, McKinney, JE & Kula, TJ 1997, 'Effects of daily topical fluoride gels on resin composite degradation and wear.', Dental Materials, vol. 13, no. 5, pp. 305-311.
Kula, K. ; McKinney, J. E. ; Kula, T. J. / Effects of daily topical fluoride gels on resin composite degradation and wear. In: Dental Materials. 1997 ; Vol. 13, No. 5. pp. 305-311.
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