What to do if i'm in the process of teeth bleaching, would smoking affect it at all?

Duh: What do you think stained your teeth in the first place? Bleaching can make teeth more porous. Combine bleaching with smoking and you can have white teeth, lung cancer, wrinkled skin, mouth cancer, stained fingers, increased cardiac risk, increased incidence of stroke, and so many other problems.

Of course it well: It well actually make it much worse, since bleaching makes teeth more susceptible to staining, by removing all the stains from the pours of enamel leaving it wide open for more stain, so don't smoke.......Ever-;).