The influence of green tea (Camellia sinensis L.) temperature on changes in enamel color

Extrinsic discoloration can be caused by tea. Nowadays, green tea is consumed by many people. To analyze the difference in tooth discoloration due to the various concentrations, frequency of exposure, and temperature of green tea 17 samples of tooth enamel were tested. The samples were divided into control, shame control, and groups of 1%, 2%, and 3% tea concentrate exposure with 60 and 180 times frequency. Three different levels of temperature (30°C, 37°C, and 45°C) were also used. Green tea was applied 60 and 180 times, for 60 seconds, to each group. The results were measured with a photometer and converted to cyan-magenta-yellow and black colors (CMYK). The tooth enamel become darker. Increasing the concentration, frequency, and temperature all caused the tooth enamel to become darker.