Journal of dentistry · 2019
Can TiF4 varnish or TiF4/NaF solution stain eroded and sound enamel?
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Mosquim Victor, Rodrigues Pereira Santi Larissa, Martines de Souza Beatriz, Magalhães Ana Carolina
Аннотация
OBJECTIVES: This study evaluated the staining potential of TiF4 varnish and TiF4/NaF solution on both sound and previously eroded enamel in vitro.
METHODS: One hundred and eighty bovine enamel samples were polished; half of them remained sound and the other half was eroded (4 × 90 s each, using a 0.1% citric acid). Thereafter, the baseline color reading was performed (T0). The samples were then subdivided into the following treatments: TiF4 varnish (24,500 ppm F, 1 × 6 h), NaF varnish (24,500 ppm F, 1 × 6 h), placebo varnish (1 × 6 h), TiF4/NaF solution (500 ppm F, 6 × 1 min), Erosion Protection-Elmex® (500 ppm F, 6 × 1 min) and control (water, 6 × 1 min). Between the applications, the samples were exposed to artificial saliva for 30 min. The color changes were measured immediately after the applications (T1-T6) and after the exposure to artificial saliva (S1-S6) by using a spectrophotometer (Vita EasyShade®). The ΔE00, L*, a* and b* data were compared using 2-way ANOVA/Tukey (p < 0.05).
RESULTS: TiF4 varnish induced significantly higher color change (ΔE00) compared to NaF and placebo varnishes on sound enamel immediately after application, but not after saliva exposure. TiF4/NaF solution induced lower ΔE00 values compared to control on sound enamel; however, no differences were found between TiF4/NaF and Elmex®. For eroded, no differences were seen between the tested varnishes and solutions. Both types of fluoride solutions increased the yellow appearance of enamel, while the varnishes did not.
CONCLUSIONS: The color changes induced by the experimental TiF4 products are similar to the commercial ones.
CLINICAL SIGNIFICANCE: Both TiF4 varnish and TiF4/NaF solution have shown staining potential similar to commercially available varnish (NaF) and solution (Elmex®) on sound and eroded enamel. These findings support the conduction of clinical trials, which, in the future, may lead to the commercialization of these products.
METHODS: One hundred and eighty bovine enamel samples were polished; half of them remained sound and the other half was eroded (4 × 90 s each, using a 0.1% citric acid). Thereafter, the baseline color reading was performed (T0). The samples were then subdivided into the following treatments: TiF4 varnish (24,500 ppm F, 1 × 6 h), NaF varnish (24,500 ppm F, 1 × 6 h), placebo varnish (1 × 6 h), TiF4/NaF solution (500 ppm F, 6 × 1 min), Erosion Protection-Elmex® (500 ppm F, 6 × 1 min) and control (water, 6 × 1 min). Between the applications, the samples were exposed to artificial saliva for 30 min. The color changes were measured immediately after the applications (T1-T6) and after the exposure to artificial saliva (S1-S6) by using a spectrophotometer (Vita EasyShade®). The ΔE00, L*, a* and b* data were compared using 2-way ANOVA/Tukey (p < 0.05).
RESULTS: TiF4 varnish induced significantly higher color change (ΔE00) compared to NaF and placebo varnishes on sound enamel immediately after application, but not after saliva exposure. TiF4/NaF solution induced lower ΔE00 values compared to control on sound enamel; however, no differences were found between TiF4/NaF and Elmex®. For eroded, no differences were seen between the tested varnishes and solutions. Both types of fluoride solutions increased the yellow appearance of enamel, while the varnishes did not.
CONCLUSIONS: The color changes induced by the experimental TiF4 products are similar to the commercial ones.
CLINICAL SIGNIFICANCE: Both TiF4 varnish and TiF4/NaF solution have shown staining potential similar to commercially available varnish (NaF) and solution (Elmex®) on sound and eroded enamel. These findings support the conduction of clinical trials, which, in the future, may lead to the commercialization of these products.