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KMID : 0355420230470030093
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Journal of Korean Academy of Oral Health
2023 Volume.47 No. 3 p.93 ~ p.98
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Characteristics of hard seltzer and their effect on the tooth surface
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Cho Seo-Yoon
Kim Ji-Eun
Choi Min-Hyub
Choi Choong-Ho
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Abstract
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Objectives: To investigate the effect of commercially available hard seltzer on the tooth enamel surface.
Methods: Some commercially available hard seltzer were purchased at the market and the characteristics of the beverages were surveyed. Subsequently, Cloud hard seltzer mango was selected for the hard seltzer group (group 4), Jeju Samdasoo for the mineral water group (group 1), Coca-Cola for the cola group (group 2), and Cloud Original for the beer group (group 3). The specimens were immersed in the experimental beverage for 30 minutes, then the surface microhardness and surface condition of the specimens were evaluated.
Results: The average pH of the twelve types of hard seltzer in this study were 3.51±0.01 (before stirring) and 3.46±0.01 (after stirring). The pH of experimental beverage were 7.92±0.03 (group 1),2.55±0.01 (group 2), 4.41±0.01 (group 3), and 3.31±0.01 (group 4). Paired t-test of the surface microhardness of enamel before and after beverage immersion found no significant difference ingroup 1 (P>0.05), but a significant difference was observed in groups 2, 3, and 4 (P<0.05). One way ANOVA of the surface microhardness change values (?VHN, before - after immersion) amonggroups found a statistically significant difference between groups 1 and 3 (9.20±34.82 ?VHN and 20.20±6.52 ?VHN) and groups 2 and 4 (82.90±18.08 ?VHN and 67.10±18.27 ?VHN) (P<0.05).
On scanning electron microscopy, hard seltzer group showed rough and ruined surface condition.
Conclusions: This study found a risk of dental erosion due to the low pH of hard seltzer. Therefore, it is suggested that when ingesting hard seltzer, dental erosion should be considered for oral health.
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KEYWORD
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Hard seltzer, Enamel, Erosion
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