Effects of Two Fluoridation Measures on Erosion Progression in Human Enamel and Dentine in situ

Ganß, Carolina; Klimek, Joachim; Brune, V; Schürmann, A

doi:10.1159/000080587

Cited by 241 publications

(223 citation statements)

References 62 publications

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“…LMR is less sensitive to minute changes in mineral content than TMR, because of the use of thicker specimens as compared with TMR. Using LMR, erosion progression in both enamel and dentin has also been assessed [91][92][93] [69][70][71]. In these studies, the method has shown to be suitable to allow for distinction of different preventive treatment modalities resulting in different mineral loss.…”

Section: Chemical Analysis Of Minerals Dissolved In the Erosive Agentmentioning

confidence: 99%

Methods for Assessment of Dental Erosion

Attin

Wegehaupt²

2014

Monographs in Oral Science

126

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Various assessment techniques have been applied to evaluate the loss of dental hard tissue and the surface-softened zone in enamel induced by erosive challenges. In this chapter, the most frequently adopted techniques for analyzing the erosively altered dental hard tissues are reviewed, such as profilometry, measuring microscope techniques, microradiography, scanning electron microscopy, atom force microscopy, nano-and microhardness tests and iodide permeability test. Moreover, methods for chemical analysis of minerals dissolved from dental hard tissue are discussed. It becomes evident that the complex nature of erosive mineral loss and dissolution might not be comprehended by a single technique, but needs application of different approaches for full understanding. Chapter 10Lussi A (ed): Dental Erosion. Monogr Oral Sci. Basel, Karger, 2006, vol 20, pp 152-172 Methods for Assessment of Dental Erosion Thomas Attin, Florian Just WegehauptCenter for Dental Medicine, Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Zürich, Switzerland AbstractVarious assessment techniques have been applied to evaluate the loss of dental hard tissue and the surface-softened zone in enamel induced by erosive challenges. In this chapter, the most frequently adopted techniques for analyzing the erosively altered dental hard tissues are reviewed, such as profilometry, microradiography, scanning electron microscopy, atom force microscopy, nano-and microhardness tests and iodide permeability test. Moreover, methods for chemical analysis of minerals dissolved from dental hard tissue are discussed. It becomes evident that the complex nature of erosive mineral loss and dissolution might not be comprehended by a single technique, but needs application of different approaches for full understanding. Copyright © 2006 S. Karger AG, Basel Acid attack leads to an irreversible loss of the outermost enamel and dentin layers and to partial demineralization (softening) of the tooth surface. In enamel, the thickness of the softened layer is estimated to be 2-5 tJm [1,2] [1, 2]. The softened eroded tooth surface is highly susceptible to abrasive wear, and mechanical impacts such as toothbrushing can easily remove the superficially demineralized dental hard tissue [3][4][5] [3][4][5]. For simulating intra-oral erosion as closely as possible, it is desirable to assess the erosive effects on native tooth surfaces. Most of the methods described below need polished surfaces for precise assessment of the erosively induced defects or for creating reference surfaces, which means that the natural, often fluoridated surface of the tooth has to be removed. However, it should be considered that in the case of intra-oral erosion the outermost surface layers are also continuously removed by the acid attack, so that a 'polished' surface is Attin 2 cre-ated. When monitoring of erosive surface alterations within a period of time is performed, it could become necessary to fix a specimen in the measuring device i...

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Section: Chemical Analysis Of Minerals Dissolved In the Erosive Agentmentioning

confidence: 99%

Methods for Assessment of Dental Erosion

Attin

Wegehaupt²

2014

Monographs in Oral Science

126

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“…17 As high concentrated fluoride agents or a prolonged application time might lead to a thicker and more stable CaF 2 -precipitate, an intensive fluoridation is considered as most effective for prevention of erosive enamel loss. 4,13 While most studies focused on the impact of the fluoride concentration and the pH-value of the fluoride agent on erosion, only few studies compared the efficacy of fluorides with respect to the fluoride compound. Thereby, SnF 2 containing toothpastes and solutions showed a better protective capability against erosion-like lesions than NaF agents.…”

Section: Introductionmentioning

confidence: 99%

Effect of sodium, amine and stannous fluoride at the same concentration and different pH on in vitro erosion

Wiegand¹,

Bichsel²,

Magalhães³

et al. 2009

Journal of Dentistry

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Effect of sodium, amine and stannous fluoride at the same concentration and different pH on in vitro erosion Abstract OBJECTIVE: This study aimed to compare the effects 0.5% and 1% sodium, amine and stannous fluoride at different pH on enamel erosion in vitro. METHODS: Bovine enamel samples were submitted to a cyclic de-and remineralisation for 3 days. Each day, the samples were exposed for 120 min to pooled human saliva and subsequently treated with one of the fluoride solutions for 3 min: amine fluoride (AmF, 0.5% and 1% F(-)), sodium fluoride (NaF, 0.5% and 1% F(-)), each at pH 3.9 and 7.0, and stannous fluoride (SnF(2), 0.5% and 1% F(-)), at pH: 3.9. Additionally, two groups were treated with fluoride-free placebo solutions (pH: 3.9 and 7.0) and one group served as control (no fluoridation).Ten specimens each group were inserted in a so-called artificial mouth and eroded six times daily with hydrochloric acid (pH 2.6) for 90 s each intermitted by exposure to artificial saliva (1h). After 3 days, enamel loss was analyzed profilometrically and evaluated statistically by ANOVA. RESULTS: Only the acidic 0.5% and 1% SnF(2) and 1% AmF solutions were able to reduce erosive enamel loss significantly, while all other solutions and placebos did not differ significantly from the control. Between the acidic SnF(2) and the 1% AmF solutions no significant differences could be detected. CONCLUSION: At the same concentrations, acidic SnF(2) and AmF may be more effective than NaF to protect enamel against erosion. Objective: This study aimed to compare the effects 0.5% and 1% sodium, amine and stannous fluoride at different pH on enamel erosion in vitro.Methods: Bovine enamel samples were submitted to a cyclic de-and remineralisation for three days. Each day, the samples were exposed for 120 min to pooled human saliva and subsequently treated with one of the fluoride solutions for 3 min: amine fluoride (AmF, 0.5% and 1% F -), sodium fluoride (NaF, 0.5% and 1% F -), each at pH 3.9 and 7.0, and stannous fluoride (SnF 2 , 0.5% and 1% F-), at pH: 3.9. Additionally, two groups were treated with fluoride-free placebo solutions (pH: 3.9 and 7.0) and one group served as control (no fluoridation). Ten specimens each group were inserted in a so-called artificial mouth and eroded six times daily with hydrochloric acid (pH 2.6) for 90 s each intermitted by exposure to artificial saliva (1h). After three days, enamel loss was analysed profilometrically and evaluated statistically by ANOVA. Results:Only the acidic 0.5% and 1% SnF 2 and 1% AmF solutions were able to reduce erosive enamel loss significantly, while all other solutions and placebos did not differ significantly from the control. Between the acidic SnF 2 and the 1% AmF solutions no significant differences could be detected.

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“…1,8,10,11,16,23,24 The in situ study design here using two erosive challenges per day (0.65% citric acid, pH 3.6) appears relatively slight but should reflect situations that can occur in patients with incipient erosion (2.7 μm -4.8 μm). [25][26][27] As expected, in the present study, the profilometric analysis showed that the lowest tissue loss was observed in the fluoride-treated group (AmF/NaF/SnCl 2 solution containing 500 ppm F -, 800 ppm Sn 2+ , pH = 4.5) compared to the control group.…”

Section: Discussionmentioning

confidence: 99%

“…1 Successful results on the reduction of dental demineralization by erosive acids have been shown with polyvalent metal ion-containing products, such as stannous, in several in vitro studies 3,4,5,6,7 and confirmed by other in situ studies. 8,9,10,11 Authors have reported the use of tin-ion in different presentation, such as solutions, toothpastes, gels and varnishes.…”

Section: Introductionmentioning

confidence: 99%

AmF/NaF/SnCl2 solution reduces in situ enamel erosion – profilometry and cross-sectional nanoindentation analysis

et al. 2017

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This in situ study aimed to investigate the effect of a tin-containing fluoride solution in preventing enamel erosion. Also, its effects on the partly demineralized zone were assessed for the first time. Thirteen volunteers participated in this 2-phase study, wearing removable intra-oral appliances containing four sterilized bovine enamel slabs, for 8 days, where 2 treatment protocols were tested using samples in replicas (n = 13): CO -no treatment (negative control) and FL -AmF/NaF/SnCl 2 solution (500 ppm F-, 800 ppm Sn 2+ , pH = 4.5). Samples were daily exposed to an erosive challenge (0.65% citric acid, pH 3.6, 4 min, 2x/day). In the 2 nd phase, volunteers switched to the other treatment protocol. Samples were evaluated for surface loss using a profilometer (n = 13) and a cross-sectional nanohardness (CSNH) test (n = 13) was carried out in order to determine how deep the partly demineralized zone reaches below the erosive lesion. The data were statistically analyzed by two-way ANOVA. Erosive challenges lead to smaller enamel surface loss (p < 0.001) in the FL group when compared to group CO. Data from CSNH showed that there was no significant difference in demineralized enamel zone underneath erosion lesions between the groups. An amorphous layer could be observed on the surface of enamel treated with tin-containing solution alone. Under the experimental conditions of this in situ study, it can be concluded that AmF/NaF/SnCl 2 solution prevents enamel surface loss but does not change the hardness of the partly demineralized zone near-surface enamel.

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Effects of Two Fluoridation Measures on Erosion Progression in Human Enamel and Dentine in situ

Cited by 241 publications

References 62 publications

Methods for Assessment of Dental Erosion

Methods for Assessment of Dental Erosion

Effect of sodium, amine and stannous fluoride at the same concentration and different pH on in vitro erosion

AmF/NaF/SnCl2 solution reduces in situ enamel erosion – profilometry and cross-sectional nanoindentation analysis

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