Erosive potential of different types of grape juices

Abstract

The purpose of the present study was to evaluate the erosive potential of different types (concentrated and powdered) and commercial brands of industrialised grape juices. The pH of all five fruit drinks was measured at two time points: immediately after preparation and 24 hours later. Sixty specimens of bovine enamel were randomly allocated and immersed in different types of grape juice (n = 10) for 10 minutes four times a day for fifteen days. The enamel alteration was analysed using surface Knoop microhardness (KHN) and surface roughness (R a ) tests at baseline and on the 5 th , 10 th and 15 th days of the experiment. Two way ANOVA, Tukey's post hoc and Pearson's correlation tests were used for statistical analysis (α = 5%). The grape juices presented pH values ranging from 2.9 to 3.5. All of the tested juices promoted significant enamel mineral loss (p < 0.05) on the first evaluation (5 th day of immersion) and produced a significant increase in the mean roughness from the 10 th day on when compared to the control group (p < 0.05). By the 15 th day, all of the beverages had produced surface roughnesses that were significantly higher than that of the control group. The results suggest that all grape juices, regardless of their commercial presentation, present erosive potential.

Protective effect of calcium nanophosphate and CPP-ACP agents on enamel erosion

“…1 Although erosive lesions have a multifactorial etiology, the increasing consumption of acidic food and soft drinks has become an important factor driving their development. [2][3][4] Many strategies have been developed for the prevention and treatment of erosion, and fluoride is the main agent used to enhance enamel remineralization. 5,6 However, to control mineral loss caused by erosion, high concentrations and frequency seem to be needed, because the protective effect of fluoride against demineralization depends on the pH level, F Declaration of Interests: The authors certify that they have no commercial or associative interest that represents a conflict of interest in connection with the manuscript.…”

“…[5][6][7] Sodium fluoride varnishes have been used due to their ability to adhere to the tooth surface and their high fluoride concentration, which increases the formation of calcium fluoride (CaF 2 ) deposits that act as fluoride reservoirs. [4][5][6] In recent years, other agents for inhibiting erosion have been investigated, such as casein phosphopeptides with amorphous calcium phosphate complex (CPP-ACP). [8][9][10] CPP-ACP complex may increase the level of calcium and inorganic phosphate ions at the tooth surface, thereby permitting immediate enamel surface remineralization.…”

Surface roughness of a resin composite

“…Significant differences in Ra were also found in the specimens submitted to coffee and black tea beginning at three months. While the respective pH values are 5.0 and 5.8, the composition of these beverages may have been the cause of erosion, as these natural substances have different long-chain organic acids 18 that can dissolve and erode restorative materials [17][18]25 . Differences in pH did not influence the results as much as the presence of acids in the substances evaluated.…”

Erosive Potential of Industrialized Teas: An in vitro study

“…In Brazil, prevalence of up to 34.1% has been observed in adolescents aged 13-14 years [12]. Currently, increasing data on the prevalence of dental erosion have attracted the attention of the dental community for the development of many studies [13].…”