Abstract
Objective: Assessment of staining effect of herbal immune boosters used during COVID-19 pandemic on teeth shade. Material and method: 70 extracted premolars (N=10) were assigned to different solutions which were formulated to mimic the impact of herbal immune boosters on teeth. A baseline reading was performed using in-vitro VITA Easy shade Advance 4.0 and one day later, seven days later, and fourteen days later. The data was entered into SPSS software version 26. Results: A statistically significant difference was noticed in orange, lemon, and curcuma. Conclusion: The consumption of some herbal products has an impact on teeth's shade. Moreover, some materials such as, orange, lemon, and curcuma had the ability to change the teeth shade faster and stronger effect on teeth shade.