수퍼마덜
I'm curious about teeth whitening.
Typically, whitening is focused on the area where about eight front teeth are visible. Also, people who have tried whitening report varying experiences with pain—some experience it, others do not. I'm also curious about how long the whitening effect lasts.
Q1) Is whitening sufficient with just one treatment?
Q2) Is there pain during whitening treatment?
Q3) How much does it cost?
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