Laser Whitening/Home Bleaching Concerns

I have minor yellow teeth, and I'd like to restore my confidence by
getting them whitened. How realistic should my expectations be if I
undergo laser whitening? I've had custom fitted trays made from the
dentist for at home whitening using excel turboz but I stopped using
after roughly 2 weeks, because a rash broke out on my elbows causing me
to believe I was allergic to the bleach. I've also read from various
places that there could be a slight possibility of oral cancer risk
with home bleaching, is it possible to power bleach my teeth using
britesmile or zoom and actually achieve 5-6 shades lighter (that'd be
my goal) or is this an unrealistic expectation.

.

Relevant Pages

  • Re: bleaching v.s. whitening (better now?)
    ... when I bleach my shirts they come out yellow .... ... > that bleaching and whitening are different. ... > Bleaching puts in an artificial colour. ... > I take it that whitening is the use of carbamide peroxide and/or hydrogen ...
    (sci.med.dentistry)
  • Re: bleaching v.s. whitening (better now?)
    ... Joel wrote: ... >> that bleaching and whitening are different. ... >> I take it that whitening is the use of carbamide peroxide and/or hydrogen ... So how does one bleach teeth than? ...
    (sci.med.dentistry)