Impact of the acid flow rate on dentin erosion

Wiegand, Annette; Stock, Alexander; Attın, Rengin; Werner, Carola; Attin, Thomas

doi:10.1016/j.jdent.2006.04.002

Cited by 33 publications

(27 citation statements)

References 33 publications

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“…Generally, citric acid was found to exhibit a greater erosivity than hydrochloric and phosphoric acid. This was also demonstrated by previous studies, which found citric acid to be more erosive than hydrochloric acid or phosphoric acid on enamel and dentine surfaces [10,25,26]. The greater erosive effect of citric acid might be related to its ability to form chelating complexes with calcium.…”

Section: Discussionsupporting

confidence: 77%

Impact of thein situformed salivary pellicle on enamel and dentine erosion induced by different acids

Wiegand

Bliggenstorfer

Magalhães

et al. 2008

Acta Odontologica Scandinavica

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Section: Discussionsupporting

confidence: 77%

Impact of thein situformed salivary pellicle on enamel and dentine erosion induced by different acids

Wiegand

Bliggenstorfer

Magalhães

et al. 2008

Acta Odontologica Scandinavica

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“…The clearance of dissolution products from the enamel surface is determined by the dissolution through a static liquid layer, which becomes partly saturated with respect to mineral dissolved from the underlying enamel Wiegand et al, 2007). At higher viscosity, this static layer might be thicker and less undersaturated, so that enamel erosion decreased.…”

Section: Discussionmentioning

confidence: 99%

“…However, compared to the chemical factors, limited information about the effect of the physical or physico-chemical aspects of the acid on dental erosion is available yet. It is known that enamel and dentin erosion increased with increasing velocity of the acid flow, due to a faster ion exchange and clearance of dissolution products (Eisenburger and Addy 2003;Shellis et al, 2005;Wiegand et al, 2007;Attin et al, 2012). Moreover, the thermodynamic properties of acidic solutions might influence their adhesiveness to and displacement of tooth surfaces (Ireland et al, 1995), which in turn might also affect their erosive capability.…”

Section: Introductionmentioning

confidence: 99%

Effect of Acidic Solution Viscosity on Enamel Erosion

et al. 2013

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The objective of this in vitro study was to investigate the effects of viscosity changes of different acidic solutions on dental erosion. Bovine enamel samples (n = 240, Ø = 3 mm) were embedded in acrylic resin and were allocated to 30 groups (n = 8). Citric acid (CA) and phosphoric acid (PA) solutions at pH 2.5, 3, and 3.5 were prepared in de-ionized water (titratable acidity to pH 5.5: 31 ± 0.6 mmol OH(-)/l). The kinetic viscosities of the acidic solutions were adjusted to 1.5, 3, 6, 12, and 24 mm(2)/sec by the addition of hydroxypropyl cellulose (HPC) at different concentrations. Solutions were pumped over the enamel surface from a reservoir with a drop rate of 1 mL/min. Each specimen was eroded for 10 min at 20°C. Erosion of enamel surfaces was measured by profilometry. Data were analyzed by analyses of variance and logarithmic regression analyses (p < 0.05). Enamel loss was dependent on viscosity, pH, and the kind of acid. The regression analyses showed that higher viscosity caused lower enamel erosion for both acids and all pH levels. Dental erosion is dependent not only on chemical factors of the acid, like pH and acid type, but also on acid viscosity. Bovine enamel samples (n=240, ∅=3 mm) were embedded in acrylic resin and were allocated to 30 groups (n=8). Citric acid (CA) and phosphoric acid (PA)solutions at pH 2.5, 3 and 3.5 were prepared in deionized water (titratable acidity to pH 5.5: 31 ± 0.6 mmol OH -/l). The kinetic viscosities of the acidic solutions were adjusted to 1.5, 3, 6, 12 and 24 mm 2 /s by adding hydroxypropyl cellulose (HPC) at different concentrations. Solutions were pumped over the enamel surface from a reservoir with a drop rate of 1ml/min. Each specimen was eroded for 10 min at 20°C. Erosion of enamel surfaces was measured using profilometry. Data were analysed using variance analyses and logarithmic regression analyses (p<0.05). Results: Enamel loss was dependent on viscosity, pH and kind of acid. The regression analyses showed that higher viscosity caused lower enamel erosion for both acids and all pH levels. Conclusion:Dental erosion is not only dependent on chemical factors of the acid, like pH and acid type, but also on acid viscosity.

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“…As a result, the pH and the concentrations of calcium and phosphate at the site of erosion increase, leading to a raised degree of saturation and slower dissolution. Erosion depends on the rate of stirring [Shellis et al, 2005;Wiegand et al, 2007] because the thickness of the Nernst layer and the degree of saturation at the tooth-solution interface decrease when movement of the bulk solution is more rapid and vice versa. It is also because erosion is diffusion controlled that the process is affected by buffering and calcium concentration of erosive solutions (see below).…”

Section: Possible Factors Affecting Erosive Potentialmentioning

confidence: 99%

Screening and Prediction of Erosive Potential

2011

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The literature on the erosive potential of drinks and other products is summarised, and aspects of the conduct of screening tests as well as possible correlations of the erosive potential with various solution parameters are discussed. The solution parameters that have been suggested as important include pH, acid concentration (with respect to buffer capacity and concentration of undissociated acid), degree of saturation, calcium and phosphate concentrations, and inhibitors of erosion. Based on the available data, it is concluded that the dominant factor in erosion is pH. The effect of buffer capacity seems to be pH dependent. The degree of saturation probably has a non-linear relationship with erosion. While calcium at elevated concentrations is known to reduce erosion effectively, it is not known whether it is important at naturally occurring concentrations. Fluoride at naturally occurring concentrations is inversely correlated with erosive potential, but phosphate is probably not. Natural plant gums, notably pectin, do not inhibit erosion, so they are unlikely to interfere with the prediction of erosive potential. The non-linearity of some solution factors and interactions with pH need to be taken into account when developing multivariate models for predicting the erosive potential of different solutions. Finally, the erosive potential of solutions towards enamel and dentine might differ.

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Impact of the acid flow rate on dentin erosion

Cited by 33 publications

References 33 publications

Impact of thein situformed salivary pellicle on enamel and dentine erosion induced by different acids

Impact of thein situformed salivary pellicle on enamel and dentine erosion induced by different acids

Effect of Acidic Solution Viscosity on Enamel Erosion

Screening and Prediction of Erosive Potential

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