X-ray diffraction and scanning electron microscope investigations of fluoride-treated dentine in man

Tal, Michael; Oron, Miriam; Gedalia, I.; Ehrlich, J

doi:10.1016/0003-9969(76)90050-9

Cited by 36 publications

(25 citation statements)

References 18 publications

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“…Reduction of sensitivity with sodium fluoride application did not show immediate results as also observed by Tal et al (28). Sodium fluoride application caused a modest reduction of hypersensitivity.…”

Section: Discussionsupporting

confidence: 62%

A double blind controlled trial comparing three treatment modalities for dentin hypersensitivity

Brahmbhatt

Bhavsar²,

Sahayata³

et al. 2012

Med Oral

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Aim: This randomized, double blind, split mouth study was aimed to compare three dentin desensitizing treatment modalities. Methods: Two hundred sixty teeth of 25 patients; each having at least 2 hypersensitive teeth in each quadrant, were included. Teeth were randomized to 4 groups: Group A treated with 2% NaF solution, Group B received GLUMA®; an aqueous solution of Hydroxy-Ethyl-Methacrylate and Glutarldehyde, (HEMA-G), Group C received iontophoresis with distilled water (placebo) and Group D was treated with NaF-iontophoresis. Pain response was evaluated on a visual analogue scale (VAS), by using tactile, air blast and cold-water stimuli at 0-day, 15-day, 1-month and 3-months interval. Results: All treatments were effective in reducing dentinal hypersensitivity significantly, Group D and Group B were more effective than Group A and Group C at all time intervals. Group D and Group B were equally effective in reducing dentinal hypersensitivity at 15-day and 1-month interval but Group D was more effective at 3-months. Conclusion: All treatment modalities were more effective in reducing hypersensitivity than placebo. 2% NaF-iontophoresis and HEMA-G were more effective than 2% NaF local application at all time intervals. But at 3-months, 2% NaF-iontophoresis was more effective than HEMA-G, while placebo produced no significant effect in reduction of hypersensitivity. Key words:Hypersensitivity, desensitisation, iontophoresis, dentin adhesive, sodium fluoride.

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Section: Discussionsupporting

confidence: 62%

A double blind controlled trial comparing three treatment modalities for dentin hypersensitivity

Brahmbhatt

Bhavsar²,

Sahayata³

et al. 2012

Med Oral

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“…26 Both groups treated with NaF showed a distinctly increased surface fluoride concentration, but did not present the globular structure of loosely-bound fluoride usually found on dentin treated with acidulated NaF. [27][28][29] While samples treated with NaF at pH 3.5 did not present visible surface precipitates even at a higher magnification (data not shown), it might be hypothesized whether the fluoride precipitates formed after application of NaF at pH 1.2 are different from the typically found globular structure.…”

Section: Discussionmentioning

confidence: 98%

TiF4 and NaF at pH 1.2 but not at pH 3.5 are able to reduce dentin erosion

Wiegand

Magalhães²,

Sener

et al. 2009

Archives of Oral Biology

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OBJECTIVE: This study aimed to analyse and compare the protective effect of buffered (pH 3.5) and native (pH 1.2) TiF(4) in comparison to NaF solutions of same pH on dentin erosion. DESIGN: Bovine samples were pretreated with 1.50% TiF(4) or 2.02% NaF (both 0.48M F) solutions, each with a pH of 1.2 and 3.5. The control group received no fluoride pretreatment. Ten samples in each group were eroded with HCl (pH 2.6) for 10x60s. Erosion was analysed by determination of calcium release into the acid. Additionally, the surface and the elemental surface composition were examined by scanning electron microscopy (two samples in each group) and X-ray energy-dispersive spectroscopy in fluoridated but not eroded samples (six samples in each group). Cumulative calcium release (nmol/mm(2)) was statistically analysed by repeated measures ANOVA and one-way ANOVA at t=10min. RESULTS: TiF(4) and NaF at pH 1.2 decreased calcium release significantly, while TiF(4) and NaF at pH 3.5 were not effective. Samples treated with TiF(4) at pH 1.2 showed a significant increase of Ti, while NaF pretreatment increased F concentration significantly. TiF(4) at pH 1.2 led to the formation of globular precipitates occluding dentinal tubules, which could not be observed on samples treated with TiF(4) at pH 3.5. NaF at pH 1.2 but not at pH 3.5 induced the formation of surface precipitates covering dentinal tubules. CONCLUSION: Dentin erosion can be significantly reduced by TiF(4) and NaF at pH 1.2, but not at pH 3.5.1 TiF 4 and NaF at pH 1.2 but not at pH 3.5 are able to reduce dentin erosion Objective: This study aimed to analyse and compare the protective effect of buffered (pH 3.5) and native (pH 1.2) TiF 4 in comparison to NaF solutions of same pH on dentin erosion.Design: Bovine samples were pretreated with 1.50% TiF 4 or 2.02% NaF (both 0.48 M F) solutions, each with a pH of 1.2 and 3.5. The control group received no fluoride pretreatment.Ten samples in each group were eroded with HCl (pH 2.6) for 10 x 60s. Erosion was analysed by determination of calcium release into the acid. Additionally, the surface and the elemental surface composition were examined by scanning electron microscopy (two samples in each group) and X-ray energy-dispersive spectroscopy in fluoridated but not eroded samples (six samples in each group). Cumulative calcium release (nmol/mm 2 ) was statistically analysed by repeated measures ANOVA and one-way ANOVA at t = 10 min.Results: TiF 4 and NaF at pH 1.2 decreased calcium release significantly, while TiF 4 and NaF at pH 3.5 were not effective. Samples treated with TiF 4 at pH 1.2 showed a significant increase of Ti, while NaF pretreatment increased F concentration significantly. TiF 4 at pH 1.2 led to the formation of globular precipitates occluding dentinal tubules, which could not be observed on samples treated with TiF 4 at pH 3.5. NaF at pH 1.2 but not at pH 3.5 induced the formation of surface precipitates covering dentinal tubules.Conclusion: Dentin erosion can be significantly reduced by TiF 4 and NaF at p...

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“…Softening of the enamel slabs occurred in the in vivo experiment only. It has to be pointed out, however, that diffusion of sugar in physiological saline solutions marked with ' ""C through slices of enamel was found to be half of that of xylitol due probably to the greater size of the sucrose molecule (Tarjan & Linden, 1981). The fact that no differences were evident in the comparison of the solubilities of hexosc alcohols like sucrose and glucose with a pentose alcohol like xylitol at various pH values does not yet permit one to draw a conclusion on the fermentability of the latter alcohol.…”

Section: Discussionmentioning

confidence: 95%

Enamel dissolution and fluoride uptake from sugar solutions

Jerushalmi

Markitziu

Friedman

et al. 1984

J of Oral Rehabilitation

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Solubility studies and fluoride uptake by enamel powder in xylitol-buffered solutions versus sucrose- and glucose-buffered solutions were carried out. The studies were done at a pH range of 4-8. The enamel solubility in the xylitol media was similar to the enamel solubility in the other sugar solutions--increasing with a decreasing pH. The solubility of enamel in the buffered sugar solutions was significantly lower as compared to the solubility in the sugar-free buffered solutions--up to the pH of 6. At the pH values of 7 and 8 the amounts of solubility were similar for the experimental and control solutions. No significant differences were found in the fluoride uptake by the enamel powder from the fluoride-containing sugar solutions at the pH values of 6 and 7.5 respectively. The results point to the conclusion that the xylitol does not differ from sucrose and glucose in its effect on enamel powder solubility and the uptake of fluoride ions by enamel.

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X-ray diffraction and scanning electron microscope investigations of fluoride-treated dentine in man

Cited by 36 publications

References 18 publications

A double blind controlled trial comparing three treatment modalities for dentin hypersensitivity

A double blind controlled trial comparing three treatment modalities for dentin hypersensitivity

TiF4 and NaF at pH 1.2 but not at pH 3.5 are able to reduce dentin erosion

Enamel dissolution and fluoride uptake from sugar solutions

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