Effect of Green Tea Extract on the Treatment of Dentin Erosion: An in Vitro Study

Objective: the aim of this study was to analyze the impact of green tea on den-tin erosion. materials and methods: twelve extracted sound human premolars were im-mersed in coca cola with a ph of 2.8 for 5 minutes. the surface microhardness was measured with a knoop diamond under a load of 50gr/10s. the teeth were immersed in green tea (camellia sinensis) solution for one minute. the micro-hardness values were measured again and compared with pretreatment values by the wilcoxon test. three eroded teeth, which were treated with green tea, were evaluated under scanning electron microscope.results: the mean ± sd of microhardness values before and after immersion in green tea were 46.5±2.79 and 54.5±4.4, respectively with statistically significant differences between the two measurements (p<0.01). in sem evaluation there was an improvement in eroded dentin appearance and there were deposits on the dentin surface.conclusion: green tea (camellia sinensis) increased the microhardness of eroded dentin and improved the eroded texture