DisillusionedCitizen said:
With dentists hiding everything from the public today, I'm wondering if drinking hot water benefits the teeth more than cold water. Thank you for your concern.
You need chemicals to get your teeth wider. You have microscopic cracks in your teeth, if you drink for example red wine or coffee, it goes into them and dyes them - your teeth become yellowish.
You need chemicals to bleach them white.
I would suggest you don’t try it yourself and go to a professional DENTIST (not anywhere else) and get a proper, professional teeth bleaching. The results are nearly permanent, but you will have to pay around 200€.
It’s important to get the job done professionally, because this process will actually drain your teeth of nutrients, and if you over do it, or do it not professionally, you can seriously damage your teeth.