(Question) I am curious about the side effects or effectiveness of teeth whitening procedures.

I am very worried because my teeth turn yellow when I smile. I think I am brushing my teeth well, but

My teeth are so yellow, maybe because I've been eating a lot of coffee and curry... haha

But I can't just quit coffee entirely, so I'm also wondering if I should get my teeth whitened.

As far as I know, I think I read somewhere that teeth whitening is extremely bad for your teeth. Is that true?

These days, I am really envious of people with crystal-white teeth when they smile. It even makes me feel embarrassed to smile.

Once teeth turn yellow, they can't be restored, right? Is teeth whitening the only solution?

Has anyone had teeth whitening treatment? Could you share your experience? I am curious if there are many side effects and if the results are good.