Influence of brushing with natural dentifrices on color change: In vitro study

Abstract

Background To evaluate in vitro the influence of daily brushing with the use of natural toothpastes on the color change of enamel in bovine teeth. Material and Methods Four dentifrices were used, one conventional Colgate Total 12 - Clean Mint (G1), and three natural, Contented Toothpaste with Organic and Natural Ingredients (G2); Dental Toothpaste (G3) and Aliv-Gaia Toothpaste (G4). Eighty bovine teeth were distributed in four experimental groups with 20 teeth each (n = 20). The buccal enamel surface of the teeth was subjected to brushing, with the related dentifrices of each group, for 2.13 seconds three times a day, with an electric brush Oral B 5000 Professional Care. Before and after brushing, color measurement tests with a spectrophotometer were performed. The color variation was calculated using the formula ΔE = [(ΔL *) 2+ (Δa *) 2+ (Δb *)2] 1/2. The results obtained were tabulated and submitted to the Kruskal Wallis non-parametric test. Results The color change (ΔE) observed was 7.551 and p-value equal to 0.056, determining that there was no statistically significant difference between the groups. However, qualitative tests showed the clearing of all experimental groups, G3 with the greatest change, followed by G2, G1 and G4. Conclusions The evaluated dentifrices were not able to promote color change. Key words: Dental enamel, plant extracts, saliva, artificial, dentifrices.

The Effect of Brushing Force on The Surface Properties and Color Stability of Dental Enamel

“…It is known that dental hard tissues are prone to discoloration depending on the toothpaste's RDA value and the characteristic features of brushing. 27 Similarly, the color change value of the 2.5 N applied group was statistically significantly higher than 1.5 N. Moreover, the ΔE of the 2.5 N applied group (ΔE: 3.48±0.83) was above the threshold ΔE:3.3 which is considered clinically acceptable. 28 Consequently, the second hypothesis was rejected.…”

Montmorillonite in dentistry: a review of advances in research and potential clinical applications

“…They are also widely used in restorative dentistry to finish and polish dental appliances, such as dentures, crowns, bridges, and direct restoratives [98]. In several formulations, Na-MMT (bentonite) has been used in oral care products as an abrasive agent [99]. The Relative Dentin Abrasivity (RDA) value or the abrasiveness index of 250 or below is deemed safe by the American Dental Association [100].…”