J Korean Acad Oral Health.  2020 Dec;44(4):194-198. 10.11149/jkaoh.2020.44.4.194.

Prevention of dental erosion in early dental caries by application of remineralizing substance to fermented beverage

• Kim JE
• Jeong SS
• Chung KH
• Choi CH

• KMID: 2510249
• DOI: http://doi.org/10.11149/jkaoh.2020.44.4.194

Abstract

Objectives
The purpose of this study was to investigate the possibility of preventing dental erosion caused by fermented milk in early carious teeth by applying 0.2% sodium fluoride to the tooth surface and adding 0.5% calcium to the drink.
Methods
We selected the experimental drink Yakult, which is the best-selling domestic fermented milk drink. A total of five groups were selected as experimental groups (mineral water, fermented milk, 0.2% NaF+fermented milk, 0.2% NaF+(fermented milk+0.5% Ca), and 0.2% NaF+Distilled water groups). After forming the artificial early caries, the pH cycling was administered for five days to derive surface microhardness and scanning electron microscope (SEM) image results.
Results
When comparing the surface microhardness before and after treatment in each group, significant differences were found among the four groups (P<0.05), except in the fermented milk group (P>0.05). A comparison of the difference in surface microhardness before and after pH cycling among the groups revealed a significant difference (P<0.05). There was no significant difference between the 0.2% NaF+(fermented milk+0.5% Ca) group, 0.2% NaF+distilled water group, and the mineral water group (P>0.05). The 0.2% NaF+fermented milk and fermented milk groups showed significant differences from the other groups (P<0.05). In the SEM image, 0.2% NaF+(fermented milk+0.5% Ca), 0.2% NaF+distilled water, and mineral water groups (P>0.05) showed smoother surfaces than the 0.2% NaF+fermented milk and fermented milk groups.
Conclusions
Based on these results, it was confirmed that if 0.5% calcium was included in the fermented milk along with the fluoride mouth rinsing program in schools using 0.2% fluoride every week when drinking fermented milk, it is possible to effectively prevent dental erosion even in early carious teeth.

Keyword

Calcium; Dental erosion; Fermented milk; Fluoride

Figure

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  Fig. 1 SEM image of enamel surface after pH-cycling treatment (1: mineral water, 2: fermented milk, 3: 0.2% NaF+fermented milk, 4: 0.2% NaF+(fermented milk+0.5% Ca), 5: 0.2% NaF+distilled water, A: ×5,000, B: ×10,000).

Reference

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