Question:
I'm currently looking for a dental process that will help me in
whitening my teeth. Due to irregular brushing as a child, my
teeth have become stained and have a yellowish appearance. I'd like
to regain that pearly white. I've heard a little about teeth bleaching,
but I'm not very familiar with it. How effective is it, and is it
safe? Are there other alternatives?
Answer:
Bleaching can be mildly to wildly effective depending on the cause and
type of staining. Some techniques use very strong bleaches under
direct supervision of a dentist for short periods while other systems
use milder bleaches at home with custom built trays. The least
effective systems are available over the counter. Safety is good with
all the systems if used as directed. You may get sore gums or temporarily
sensitive teeth with any of the systems that will preclude further use
but permanent damage is unlikely. I just tried the system I use most
on myself finally. It was accomplishing the results I wanted but one
particularly worn tooth would get really sensitive for a few days. Now
I just do it once a month or so. I have one or two more sessions
before I max out. Most alternatives are very expensive and, to
differing extents, irreversibly alter the teeth. You need to have your
case evaluated by a dentist to see which is appropriate for you.
This question surfaces every month or so; here is what I can tell
you:
o Everyone's teeth have their own characteristic shade; like hair
and skin color. It is subtle to besure; but it is you.
o It is normal for teeth to darken a bit with age. An older person
looks rediculous with super white teeth.
o Stains that are extrinsic or caused by things like coffee, tea,
smoking, and the like usually responded to over the counter
products.
o The professionally applied bleaching agents will do wonders for
external stains; but have limited success with stains and
discolorations that are *part* of the enamal. See your dentist
to find out what may work.
o Current products are generally safe *if* used as dirrected; although
some people may experience some local irritation to their gum
tissue.
o All products do take time to work; so don't expect too much too soon.
o Other alternatives involve procedure which are expensive and
invasive to the teeth; as crowns, veneers, and the like. See
your dentist for the options.
o Finally, ask yourself how will whiter teeth improve your life???
Is it worth it???
I have a related question. Can hydrogen peroxide attack the
materials used in crowns and fillings (e.g. slight oxidation
in the stainless steel core which is exposed)?
In the dilutions used in your mouth, 3% or less, the peroxide will
not cause any harm to dental restorative materials.
