블루버드
앞니가 심하면 신경이 많이 쓰이실것 같아요. 저도 커피를 오랫동안 마셨는데..주위에 안 마시는 사람도 누렇던데..
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After drinking coffee, I feel like I want to rinse my mouth.
Maybe it's because I drink coffee often or something.
It seems like my teeth are turning yellow.
The two front teeth are a darker shade than the other teethㅠㅠ
Does teeth whitening cause damage to the teeth?
How many times do I have to do it?;;
How much does teeth whitening typically cost?
I'm wondering if there are any side effects.