Reza Vafadoost - Department of Periodontics, School of Dentistry, Islamic Azad University of Tehran Medical Sciences, Tehran, Iran
Dorsa Aghajani - Graduate School, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Banafsheh Salehi - Graduate School, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
Hamid Ahmadian-Moghadam - Department of Genetics, Iranian Institute for Reduction of High-Risk Behaviors, Tehran University of Medical Sciences, Tehran, Iran.

Introduction: Evidence shows that people from different regions have different teeth characteristics based on their daily water consumption. This exploratory study aimed to measure the mineralization potential of mineral water and fresh milk on the demineralized enamel surface. Methods: The enamel surface was softened for ۱۰ min in ۱۰۰ ml of ۱% citric acid under ۱۵۰ rpm agitation in all specimens. Afterward, the specimens were mineralized with ۱۰۰ ml of mineral water and milk under ۱۵۰ rpm agitation. The mineral content of the enamel surface before and after the treatment in nanoscale was measured using an energy-dispersive X-ray spectrometer (EDXS). Before and after treatment, the results of EDXS were analyzed using a one-way ANOVA test. Results: The results showed that initial treatment with citric acid significantly increased the surface roughness of the enamel surface. Moreover, in treatment with fresh milk, the potassium and sodium content of the enamel surface increased. It was also reported that mineral water treatment increased the sodium content of the enamel surface. Conclusion: The findings suggested that milk and mineral water might slightly recover the damage induced by citric acid on the enamel surface. 

Demineralization, Enamel Surface, Milk, Mineralization, Mineral Water