Journal of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
Year: 2012 | Volume: 9 | Issue: 4 | Page No.: 224-228

Effect of Green Tea Extract on the Treatment of Dentin Erosion: An In Vitro Study
M. Mirkarimi, L. Toomarian

Abstract:
Objective: The aim of this study was to analyze the impact of green tea on dentin erosion.
Materials and Methods: Twelve extracted sound human premolars were immersed 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.