Zubaidah HA Rahim, BSc, PhD, Department of Oral Biology & Biomedical Sciences, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Marina M Bakri, BDS, PhD, Department of Oral Biology & Biomedical Sciences, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Pak J Med Sci. 2014 Mar;30(2):404-8. doi: 10.12669/pjms.302.4413.
In children, excessive ingestion of fluoride from different sources including bottled drinking water and flavoured beverages or soft drinks can lead to the development of dental fluorosis. In addition, the pH level of beverages is important. Low pH can cause dental erosion. In this study we explore the fluoride content and pH level of certain popular beverages available in Malaysian supermarkets and hawkers' stalls.
Bottled drinking water and selected popular flavoured packet drinks were purchased from a supermarket and the corresponding flavoured hawkers' drinks, from a hawker's stall in Kuala Lumpur. Fluoride and pH of the beverages were determined using digital fluoride meter and digital pH meter respectively.
It was found that fluoride content and pH level vary among the beverages. The mean fluoride content in both packet and hawkers' drinks (7.64±1.88 mg/L, 7.51±1.60 mg/L, respectively) was approximately 7 times higher than the bottled drinking water (1.05±0.35 mg/L). Among the beverages, the tea packet drink was found to contain the highest amount of fluoride (13.02±0.23 mg/L). The mean pH of bottled-drinking water was near neutral (6.96±0.17), but acidic for both supermarket (4.78.00±0.49) and hawkers' drinks (5.73±0.24). The lychee packet drink had the lowest pH level (2.97±0.03).
Due to the wide variation of the fluoride content and pH level of the drinks tested in this study, it is recommended that steps should be taken to control the fluoride concentration and pH level in beverages if dental fluorosis and erosion are to be prevented.
在儿童中，从瓶装饮用水和各种风味饮料或软饮料等不同来源摄入过多的氟化物可导致氟斑牙的发生。此外，饮料的 pH 值很重要。低 pH 值可导致牙齿侵蚀。本研究旨在探讨马来西亚超市和小贩摊位出售的某些流行饮料的氟化物含量和 pH 值。
从超市购买瓶装饮用水和选定的流行风味袋装饮料，从小贩摊位购买相应的风味饮料。使用数字氟化物计和数字 pH 计分别测定饮料中的氟化物和 pH 值。
结果表明，饮料中的氟化物含量和 pH 值存在差异。袋装饮料和小贩摊位饮料的平均氟化物含量（分别为 7.64±1.88 mg/L 和 7.51±1.60 mg/L）约为瓶装饮用水（1.05±0.35 mg/L）的 7 倍。在这些饮料中，茶包饮料中发现含有最高量的氟化物（13.02±0.23 mg/L）。瓶装饮用水的平均 pH 值接近中性（6.96±0.17），但超市和小贩摊位的饮料均呈酸性（4.78±0.49 和 5.73±0.24）。荔枝袋泡茶的 pH 值最低（2.97±0.03）。
由于本研究中测试的饮料的氟化物含量和 pH 值差异很大，如果要预防氟斑牙和牙齿侵蚀，建议采取措施控制饮料中的氟化物浓度和 pH 值。
