The conversation between human and AI assistant.
What is the most effective method to whiten teeth from cigarette stains at home?
I have tried using baking soda, but I haven't seen much improvement. Which method do you think is the most effective?
It really depends on the individual and their specific case. Some people may see great results with baking soda, while others may have better success with hydrogen peroxide or whitening strips. It's important to do your research and find a method that works best for you. Have you tried any other methods besides baking soda?