BACKGROUND: The market for vitamin drinks is expanding both in Korea and worldwide. However, it was difficult to find studies regarding the possibility of tooth erosion induction due to vitamin drinks. The purpose of the present in vitro study was to evaluate the effect of tooth erosion caused by a few commercial vitamin beverages on bovine teeth enamel in terms of erosion depth and fluorescence loss. METHODS: Three experimental groups (vitamin drinks), a positive control group (Coca-Cola), and a negative control group (mineral water) were established. Each group consisted of 5 specimens obtained from sound bovine teeth. The pH and titratable acidity of beverages were measured. Specimens were immersed in the beverages and artificial saliva for 6 and 18 hours, respectively. This cycle was repeated for 5 days. The depth of the tooth loss caused by tooth erosion (erosion depth) and maximum loss of fluorescence (Max ΔF) were measured using the microscope and quantified light-induced fluorescence-digital, respectively. For the statistical analysis, the Kruskal-Wallis test and ANOVA were used to compare the erosion depth and Max ΔF of the enamel surfaces. In addition, Spearman correlations were estimated. RESULTS: The pH of the three vitamin beverages ranged from 2.65 to 3.01, which is similar to that of the positive control group. All beverages, except mineral water, had sugar and acidic ingredients. Vitamin drinks and the positive control, Coca-Cola, caused tooth erosion lesions, and showed significant differences in erosion depth compared to mineral water (p<0.05). The vitamin beverages with low pH were associated with high erosion depth and Max ΔF. CONCLUSION: Vitamin drinks have the potential to cause tooth erosion.
Beverages ; Dental Enamel ; Fluorescence ; Hydrogen-Ion Concentration ; In Vitro Techniques ; Korea ; Mineral Waters ; Saliva, Artificial ; Tooth Erosion ; Tooth Loss ; Tooth ; Vitamins

OBJECTIVES: This research was conducted to identify the consumers' food choice factors that affect the consumers' replacement of soft drinks with carbonated water. METHODS: The present study used secondary data from a consumer panel survey conducted by the Rural Development Administration of Korea, and the data included the panel members' purchase records based on their monthly spending receipts. The survey asked the participants about their food choice factors and their personal responsibility for their health. This survey included independent variables for the consumers' food purchase factors. As a dependent variable, two types of groups were defined. The replacement group included those people who increased their purchase of carbonated water and decreased their purchase of soft drinks. The non-replacement group included those people who did not change their purchase patterns or they increased their purchase of soft drinks and they decreased their purchase of carbonated water. Logistic regression analysis was conducted to determine the consumers' food choice factors that were associated with replacing soft drinks with carbonated water. RESULTS: The replacement group was significantly associated with (1) a younger age (OR=0.953), (2) being a housewife (OR=2.03), (3) higher income (OR=1.001) and (4) less concern about price (OR=0.819) when purchasing food. This group also showed (5) higher enjoyment (OR=1.328) when choosing food and (6) they took greater responsibly for their personal health (OR=1.233). CONCLUSIONS: This research is the first study to mainly focus on soft drinks and carbonated water. The result of this research showed that young, health-conscious consumers with a higher income and who are more interested in food have more possibilities to replace soft drinks with carbonated water. These research findings may be applied to consumers who have characteristics that are similar to the young health-conscious consumers and the results can help to suggest ways to reduce sugar intake and improve public health. However, this research has a limitation due to the application of secondary data. Therefore, a future study is needed to develop detailed survey questions about food choice factors and to extend these factors to all beverages, including soft drinks made with sugar substitutes, so as to reflect the growth of alternative industries that use artificial sweeteners or different types of sugar to make commercially available drinks.
Beverages ; Carbon ; Carbonated Beverages ; Carbonated Water ; Consumer Behavior ; Humans ; Korea ; Logistic Models ; Public Health ; Social Planning ; Sweetening Agents

OBJECTIVES: Although water is essential for life and can supply essential minerals, studies that evaluate calcium intake through drinking water are limited. The aim of this study was to assess calcium contents of natural mineral water (NMW) and its possible contribution to calcium intake in healthy adults. METHODS: This study examined water consumption in 640 Korean adults with selfselected diet, analyzed the calcium content of 10 different brands of bottled NMWs sold in Korea, and assessed the amount of calcium intake from drinking water and its daily contribution to the recommended nutrient intake (RNI) of calcium. RESULTS: Mean calcium content in 10 bottled NMWs was 20.9 mg/l. Daily water intakes from food composition database and calculated using energy intake based on 0.53 ml/kcal were 957.2 ml and 1109.8 ml for men and 848.3 ml and 951.6 ml for women, respectively, with a significant difference by gender (p < 0.001). Daily drinking water intake was significantly higher among men than women (1203.9 ml vs. 1004.3 ml, respectively, p < 0.001). Daily calcium intakes from foods were 564.0 mg for men and 534.2 mg for women. Daily possible calcium intakes from drinking bottled water were 25.2 mg for men and 21.0 mg for women (p < 0.001). The contribution of daily calcium intake from drinking bottled water to RNI of calcium was 3.3% for men and 2.9% for women without significant difference. CONCLUSIONS: One half of the daily total water intake was consumed as drinking water, and possible calcium intake through drinking water was about 3% of RNI.
Adult ; Calcium ; Diet ; Drinking Water ; Drinking ; Energy Intake ; Female ; Humans ; Korea ; Male ; Mineral Waters ; Minerals ; Miners ; Water

OBJECTIVES: Although water is essential for life and can supply essential minerals, studies that evaluate calcium intake through drinking water are limited. The aim of this study was to assess calcium contents of natural mineral water (NMW) and its possible contribution to calcium intake in healthy adults. METHODS: This study examined water consumption in 640 Korean adults with selfselected diet, analyzed the calcium content of 10 different brands of bottled NMWs sold in Korea, and assessed the amount of calcium intake from drinking water and its daily contribution to the recommended nutrient intake (RNI) of calcium. RESULTS: Mean calcium content in 10 bottled NMWs was 20.9 mg/l. Daily water intakes from food composition database and calculated using energy intake based on 0.53 ml/kcal were 957.2 ml and 1109.8 ml for men and 848.3 ml and 951.6 ml for women, respectively, with a significant difference by gender (p < 0.001). Daily drinking water intake was significantly higher among men than women (1203.9 ml vs. 1004.3 ml, respectively, p < 0.001). Daily calcium intakes from foods were 564.0 mg for men and 534.2 mg for women. Daily possible calcium intakes from drinking bottled water were 25.2 mg for men and 21.0 mg for women (p < 0.001). The contribution of daily calcium intake from drinking bottled water to RNI of calcium was 3.3% for men and 2.9% for women without significant difference. CONCLUSIONS: One half of the daily total water intake was consumed as drinking water, and possible calcium intake through drinking water was about 3% of RNI.
Adult ; Calcium ; Diet ; Drinking Water ; Drinking ; Energy Intake ; Female ; Humans ; Korea ; Male ; Mineral Waters ; Minerals ; Miners ; Water

OBJECTIVES: The purpose of this study was to investigate the effects of dry syrups on bovine tooth surfaces. METHODS: Each specimen of the extracted bovine teeth enamel was treated with two types of dry syrup (experimental group), mineral water (negative control group), and liquid syrup (positive control group) (n=12 per group). The specimens were immersed for 1, 5, and 10 minutes and subsequently analyzed for surface microhardness changes using a Vickers hardness tester. RESULTS: The surface microhardness of sound enamel decreased as the immersion time increased. In addition, the microhardness difference (ΔVHN) among the groups after immersion for 10 minutes in both liquid syrup and two types of dry syrup was higher than that after immersion in mineral water (P<0.05). There were significant differences between the liquid syrup group and the two dry syrup groups (P<0.05). However, there was no significant difference between the two groups of dry syrup (P>0.05). CONCLUSIONS: These results imply the erosive potential of dry syrup on tooth surfaces. The longer the contact time with teeth, greater is the risk of dental erosion. Therefore, it is recommended that the mouth be rinsed with water after drinking the syrup.
Dental Enamel ; Drinking ; Hardness Tests ; Immersion ; Mineral Waters ; Mouth ; Tooth ; Water

This study was conducted to analyze the effects of beverages on tooth corrosion by selecting drinks that are enjoyed by modern people. Drinks were selected for carbonated beverages (Coca Cola), energy drinks (Red Bull), orange juice, beer (Hite) and water (Evian). Bovine tooth was immersed for 1 hour, 24 hours and 48 hours. The root mean square (RMS) values were obtained by scanning the bovine tooth at pre-immersion and immersion time after impression making. Two-way ANOVA, one-way ANOVA, and Tukey-test were used to compare differences between groups (α=0.05). The RMS value tended to increase with longer immersion times in all beverages, and there was a significant difference (p < 0.05) between before immersion-1hr and before immersion-48 hr. The mean of RMS according to the type of beverage was significantly different and there was a significant difference according to the change of immersion time (p < 0.05). In order to prevent tooth corrosion, it is necessary to change the method of ingestion or to reduce the time of ingestion.
Beer ; Beverages ; Carbonated Beverages ; Citrus sinensis ; Corrosion ; Eating ; Energy Drinks ; Immersion ; Methods ; Tooth ; Water

OBJECTIVES: The purpose of this study was to evaluate the erosive potential of tea beverages containing citric acid on tooth surfaces. METHODS: Specimens of extracted bovine teeth enamel were embedded in resin and polished. The specimens were subjected to one of three treatments (n=10 per treatment group): mineral water, brewed black tea, or black tea beverage. Tooth specimens were exposed to the treatment for 30 minutes and then analyzed using Vickers surface hardness testing and scanning electron microscopy. RESULTS: After 30 minutes of treatment, there were statistically significant differences between the hardness of the enamel pre- and post-treatment in both, the brewed black tea and black tea beverage groups (P<0.05). The differences in microhardness (ΔVHN) were ―71.49±14.99, ―9.05±10.25, and ―2.43±15.44 in the black tea beverage, brewed black tea, and mineral water groups, respectively. In the difference of microhardness (ΔVHN) between groups, the black tea beverage group showed significantly greater changes than the brewed black tea and mineral water groups (P<0.05). However, there was no significant difference between the brewed black tea group and the mineral water group (P>0.05).On observation using a scanning electron microscope, the tooth surfaces exposed to the black tea beverage containing citric acid were rougher than the tooth surfaces in the other two groups. CONCLUSIONS: This study demonstrates the erosive potential of citric acid-containing tea beverages on tooth surfaces. Thus, there is need to caution people regularly consuming tea beverages containing citric acid, regarding the possibility of tooth surface erosion.
Beverages* ; Citric Acid* ; Dental Enamel ; Hardness ; Hardness Tests ; Microscopy, Electron, Scanning ; Mineral Waters ; Tea* ; Tooth*

PURPOSE: The purposes of this study were to investigate food consumption practices and analyze factors that influence customer satisfaction of an HACCP applied restaurant in a highway service area. METHODS: A total of 207 customer responses were used for data analysis. Statistical analyses were conducted using the SPSS program (ver. 22.0) for χ²-test, Pearson correlation analysis, and multiple regression analysis. RESULTS: Reasons for visiting the highway area were using the restroom (86.0%), purchasing of meals or snacks (70.1%), taking a rest (58.5%), and shopping (3.4%) and selection attributes of food sold in the highway service area were food taste (48.8%), food safety (33.3%), and waiting time for meal (10.7%). According to the results of the survey, udon (66.2%) was the most preferred meal, followed by instant noodles (56.0%), kimbap (50.7%), pork cutlet (38.2%), and bibimbap (29.0%). In addition, coffee (73.4%) was the most preferred among snacks and beverages, followed by beverages (58.9%), walnut cake (53.1%), mineral water (52.2%), and hotbar (52.2%). Satisfaction evaluation scores of foods sold in the highway service area were highest for appropriate portion size, followed by food safety, menu variety, food taste, and reasonable price. Overall customer satisfaction scores regarding the restaurant in the highway service area was 3.24 out of 5 points on average. According to the results of the multiple regressing analysis, food taste (p < 0.001) and reasonable price (p < 0.01) had significant positive effects on overall customer satisfaction. CONCLUSION: To enhance customer satisfaction, restaurant managers in the highway service area should implement HACCP, improve food taste, and set up a proper price for food sold at the restaurant in the highway service area.
Beverages ; Coffee ; Food Analysis ; Food Safety ; Hazard Analysis and Critical Control Points* ; Juglans ; Meals ; Mineral Waters ; Portion Size ; Red Meat ; Restaurants* ; Snacks ; Statistics as Topic

BACKGROUND/OBJECTIVES: The aim of this study was to investigate the perception of sugar reduction, nutrition education, and frequency of snacking in children according to the self-perceived dietary preferences for sweet taste by mothers in Busan. SUBJECTS/METHODS: A total of 277 mothers were surveyed, and their perceptions of sugar reduction and the frequency of snacking in children were assessed using a questionnaire. The subjects were classified into either a sweet (n = 91) or an unsweet (n = 186) group according to their self-perceived preferences for a sweet taste. RESULTS: In the sweet group, the results for sweet products were sweetened ice (86.8%), confectionery (74.7%), processed milk (73.6%), carbonated beverages (71.4%), and fermented milk (53.9%). In the unsweet group, the results were sweetened ice (88.7%), carbonated beverages (78.5%), processed milk (75.8%), confectionery (69.4%), and fermented milk (50.5%). The necessity of sugar intake reduction was high in both groups (sweet = 89.0%, unsweet = 82.8%). Beverage purchases after identifying the nutrition labeling was significantly lower in the sweet group than in the unsweet group (P < 0.05). The reasons for the beverage purchases instead of water were "habitually" (50.5%) and "like sweet taste" (25.3%) in the sweet group (P < 0.01). Snacking in children was significantly higher in the sweet group based on the increased frequencies of carbonated drinks (P < 0.01), fast food (P < 0.001), candy and chocolate (P < 0.05), crackers (P < 0.01), ramen (P < 0.01), and fish paste/hotdogs (P < 0.01). The frequency of purchase education after identifying the nutrition labeling was significantly lower in the sweet group than in the unsweet group (P < 0.01). CONCLUSIONS: These findings suggest that a perception of sugar reduction and practical nutrition education aimed at reducing the sugar intake are necessary to improve dietary habits.
Beverages ; Busan* ; Cacao ; Candy ; Carbonated Beverages ; Child* ; Education* ; Fast Foods ; Food Habits* ; Food Labeling ; Humans ; Ice ; Milk ; Mothers* ; Snacks* ; Water

OBJECTIVES: The aims of this study were to determine the erosive potential of several carbonated waters and to confirm the availability of a simple ISO protocol for screening the erosive potential of drinks. METHODS: A total of six carbonated waters were tested. Three products (Lemon-Sparkling water, Seagram, and Trevi) were domestic, and the other three (Perrier, San Pellegrino, and Rosbacher) were imported. Two kinds of carbonated drinks (Coca-Cola and Sprite) were used as controls. The erosive potential of each drink was assessed by measuring the initial pH (pH(I)), the final pH after degassing of carbon dioxide (pH(F)), and the titratable acidity to pH 5.5 (TA(5.5)) and 7.0 (TA(7.0)). The pH changes (DeltapH) caused by the addition of drinks to screening solutions were calculated according to the ISO protocol for evaluating the erosive potential of oral rinses. RESULTS: The overall erosive potential of the carbonated waters was lower than that of the control drinks. The pHI and pH(F) of the carbonated waters ranged from 3.94 to 5.84 and from 5.07 to 7.88, respectively. The Lemon-Sparkling water showed the highest erosive potential among the carbonated waters, having the lowest pH (3.94) and the highest TA(5.5) (1.67 ml). The DeltapH of all tested drinks ranged from -1.00 to 0.23. Also, the tendency of erosive potential measured by DeltapH was similar to that measured by TA(5.5). CONCLUSIONS: The carbonated waters tested in this study had a lower erosive potential than did the carbonated drinks. However, the erosive potential of domestic products was higher than that of imported products. The results of the ISO screening test could reflect the influence of the acid content as well as the pH of drinks. Therefore, this protocol could also be conveniently applied to evaluate the erosive potential of various drinks.
Carbon Dioxide ; Carbon* ; Carbonated Beverages ; Carbonated Water* ; Hydrogen-Ion Concentration ; Mass Screening ; Proton-Motive Force ; Tooth Erosion ; Water