Topographic and radiographic profile assessment of dental erosion. Part III: Effect of green and black tea on human dentition.

This study compared green and black tea to soda and orange juice in terms of their erosive effect on the human dentition. Vinegar and water were used as active and passive control fluids. An accelerated in vitro test was used to monitor how short- and long-term exposure to these fluids affected the topography and morphology of the coronal segments of the human dentition. This 20-week test was conducted under controlled conditions, independent of the influencing factors of the oral environment. The erosive effects of these fluids were categorized generally into three groups: highly erosive (vinegar), moderately erosive (soda and orange juice), and minimally erosive (black and green tea). The erosive effect of tea was similar to that of water, which has no erosion potential. Given the systemic and dental benefits of tea and the low potential for erosion, green and black tea should be highly encouraged for daily beverage consumption.