Can zoom bleaching change the color of your dentin and or just make it appear whiter?

The lower part of my teeth especially my two front teeth are translucent at the tips and the lower middle part of my teeth I can see through it up until I see a yellowish solid part. So I presume that's dentin. I was just wondering if that could be lightened or appear whiter with bleaching. I've read on some sights that say it's your natural tooth color and it can't be changed but when I read other sights they say the bleaching goes through your enamel and gets stains out of the dentin and enamel, or something of that matter.