celeron_266

surface stain you can remove by normal brushing....baking soda helps by acting as a abrasive
the strength of the strips are so weak that it can only bleach the surface stain

if the stain is deep inside the teeth.....go see a dentist

celeron_266

the lady who i talked to said they dont suggest you to do whitening at the dentist because it's harmful for your teeth
tequila 發表於 2009-5-27 23:24

well if you want to have like super white teeth you have to make a compromise....

celeron_266

43# peter236
peroxides plus light