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Coffee and tea are often consumed by Indonesian and Aceh people. Based on previous research reported that concentration of fluor in coffee and tea affects pattern structure of enamel prism. Currently, little explanation about relationship between fluor concentrations and pattern structure of enamel prism in enamel surface after coffee and tea drinking water exposure. The purpose of this study is to explain relationship between fluor concentrations and pattern structure of enamel prism in enamel surface after coffee and tea drinking water exposure. Materials and methods: Eight maxillary premolars were divided into control and treatment group. Positive control group exposure to NaCl 0.9%, negative control group exposure to sulfuric acid 50%, treatment groups are exposure to coffee and tea drinking water. This study conducted by scanning electron microscopy/ energy dispersive X-ray spectroscopy (SEM/EDX). Data analysis is descriptive qualitative. Results: Fluor in tea increases the density of the enamel prism structure pattern. Surface enamel that exposed to tea has described better arrangement of enamel prism pattern than enamel surface that exposed to coffee. Conclusion: Fluor concentration in drinking water has relationship with structure patterns of enamel prism. The structure patterns of enamel prism that exposed to tea have better arrangement than enamel that exposed to coffee.

Relationship between Fluor Concentration and Structure Pattern of Enamel Prism in Enamel Surface after Coffee and Black Tea Exposure