Effect of Galla chinensis extract and chemical fractions on demineralization of bovine enamel in vitro

To assess the effect of resin infiltration vs. fluoride varnish in enhancing enamel surface conditions after interproximal reduction (IPR). After IPR procedures, 84 human enamel specimens were divided into three groups, group A/ group B was treated by fluoride varnish/resin infiltration according to the manufacturers' instructions, group C were treated with nothing. All the specimens were pH-cycled twice daily in 37°C bath for 30 days. Surface micro-hardness, density and mineral loss were measured before and after the pH cycling. The data were analyzed and compared using ANOVA. Both treatments A and B increased the surface microhardness of enamel after IPR (p<0.05). Both before and after pH cycling, the surface microhardness of A was significantly harder than B. The density of A was higher than B before pH cycling (p<0.05). Fluoride varnish and resin infiltration may provide an enamel protection from acid challenge.

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“…The prepared specimens were pH-cycled as previously described 22) . Briefly, the specimens were firstly incubated in artificial saliva (pH 6…”

Section: Ph Cycling Experimentsmentioning

confidence: 99%

The effect of resin infiltration <i>vs.</i> fluoride varnish in enhancing enamel surface conditions after interproximal reduction

et al. 2016

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“…Cheng et al 9) found that GA could effectively promote the remineralization of caries surface and has a synergistic effect with fluoride. Zou et al 10) measured the change of bovine tooth hardness values after pH cycling and found that GA had certain inhibitory effect on enamel demineralization. Zhang et al 11) observed the amount of enamel demineralization and lesion depth by microscopy radiographic technique, confirming that GA could inhibit the tooth demineralization.…”

Section: Introductionmentioning

confidence: 99%

Control of hydroxyapatite crystal growth by gallic acid

Tang

Cheng

et al. 2015

Dent. Mater. J.

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The purpose of this study is to detect the effect of gallic acid (GA) on hydroxyapatie crystal growth and find the mechanism of the regulation. We evaluated the morphology of HAP crystals grown under various amounts of GA (0, 0.05, 1, and 4 gL −1 ). Subsequently, the chemical composition, crystal size and the morphology were investigated via the energy-dispersive X-ray spectrometer, attenuated total fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray diffraction analysis, transmission electron microscope and scanning electron microscopy. In all groups, the Ca/P ratio was closed to 1.67. In the absence of GA, crystals did not arrange, while in the presence of GA, crystals tended to form spherules. The size of the crystals decreased with the concentration of GA increased. These results indicated the role of GA on the growth and morphology of hydroxyapatite crystals, which might be the key mechanism for gallic acid regulating the mineralization.

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“…Previous studies have indicated that various chemical compounds of G. chinensis could inhibit demineralization and enhance remineralization of dental enamel (Liu et al, 2003;Chu et al, 2007). Zou et al demonstrated the potential of the extract of G. chinensis (GCE) to affect demineralization under dynamic pH-cycling conditions (Zou et al, 2008). Cheng et al indicated that GCE and gallic acid could enhance the remineralization of artificial early enamel caries.…”

Section: Introductionmentioning

confidence: 99%

Effect of Galla chinensis on the In Vitro Remineralization of Advanced Enamel Lesions

Cheng

Cate

2010

Int J Oral Sci

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Effect of Galla chinensis extract and chemical fractions on demineralization of bovine enamel in vitro

Cited by 34 publications

References 23 publications

The effect of resin infiltration <i>vs.</i> fluoride varnish in enhancing enamel surface conditions after interproximal reduction

The effect of resin infiltration <i>vs.</i> fluoride varnish in enhancing enamel surface conditions after interproximal reduction

Control of hydroxyapatite crystal growth by gallic acid

Effect of Galla chinensis on the In Vitro Remineralization of Advanced Enamel Lesions

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