Nirmala S V S G, Subba Reddy V V
Department of Pedodontics and Preventive Dentistry, Narayana Dental College, Nellore, Andhra Pradesh, India.
J Indian Soc Pedod Prev Dent. 2011 Jul-Sep;29(3):205-15. doi: 10.4103/0970-4388.85814.
Fruit juices are popular worldwide with children of all ages as they are sweet and perceived to be healthful. This in vitro study was sought to measure pH of 10 different fruit juices, to find out possible erosive effects on human dental enamel of 40 extracted sound premolars and also to measure fluoride and trace elements of these juices. The estimation of pH of fruit juices was done by using Systronic upH 362 pH meter. The erosive effects of fruit juices were tested by using polarized light microscope. Orion electrode was used to measure fluoride. The trace elements were estimated by using Atomic Absorption Spectrophotometer No. 6501F. The pH values in different juices were observed at different levels, and pH values of these juices were more acidic than baseline after 24 hours. As the time increased, the erosion effect became more in pineapple; grape and sugarcane juices, and they had more cariogenic trace elements like selenium, iron and manganese. So, these juices were found to be cariogenic. To conclude, orange, mousambi, mango, pomegranate, apple, chikku and watermelon juices had no erosive effect on the human enamel, with the presence of highest amount of trace elements like fluoride and phosphorous which are considered as strongly cariostatic.
果汁在全世界范围内都很受各年龄段儿童的欢迎，因为它们味道甜美且被认为有益健康。这项体外研究旨在测量10种不同果汁的pH值，以探究40颗拔除的完好前磨牙对人类牙釉质可能产生的侵蚀作用，并测量这些果汁中的氟化物和微量元素。果汁的pH值通过使用Systronic upH 362 pH计进行测定。果汁的侵蚀作用通过偏光显微镜进行测试。使用奥立龙电极测量氟化物。微量元素通过使用6501F型原子吸收分光光度计进行测定。不同果汁的pH值在不同水平被观察到，并且这些果汁在24小时后的pH值比基线更酸。随着时间增加，菠萝汁、葡萄汁和甘蔗汁的侵蚀作用更强，并且它们含有更多具有致龋性的微量元素，如硒、铁和锰。所以，这些果汁被发现具有致龋性。总之，橙汁、莫桑比汁、芒果汁、石榴汁、苹果汁、人心果汁和西瓜汁对人类牙釉质没有侵蚀作用，它们含有最高含量的氟化物和磷等微量元素，这些元素被认为具有很强的防龋作用。
