Will Zoom or any other teeth whitening work in my case?

I am 19 and my teeth turned kinda yellow after I used braces for 2 years.Will Zoom leave my teeth perfectly white?
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there is no way to predict how white your teeth will get after the whitening process, many stains may not come off that easily, in my experience as a dentist teeth will get up to 9 shades whiter that is good and perfectly normal. Teeth are not monochrome white there are healthy white and Hollywood white, be realistic
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