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Tooth whitening (Bleaching)
Why do teeth become yellowish or
brownish-colored ?
Tooth
color varies from individual to individual depending on the density of
protein layer inside the teeth. The most
usual
case of acquired discolorations is the darkening of the teeth with advancing
age. Consumption of stain-causing beverages (coffees, teas, colas etc.),
tobacco use; traumas to the teeth, old dentures, laminate veneers and
fillings could also lead to discoloration. Use of antibiotics (such as
tetracycline) during tooth development or extensive fluor intake may cause
tooth discoloration as well.
Who are candidates for tooth whitening
and when is it indicated ?
If
your teeth have a dark hue or take on a yellowish, greyish or brownish hue or
are stained on the surface, then you might get your teeth whitened after an
examination by your dentist.The whitening procedure is carried out easily in
a healthy mouth. It is a safe solution for a whiter and more natural smile.
Is tooth whitening safe ?
Yes
it is ! According to numerous studies, the whitening procedure is extremely
effective and safe if performed under medical supervision.The whitening
procedure can make teeth up to six shades lighter. No harmful effects on
teeth or gums are seen. Occasionally, teeth could become a bit more sensitive
to cold or hot. However, this will subside completely when the treatment is
carried out intermittently or terminated.
How long does the procedure take ?
In
most cases, whitening effect is seen immediately. However, total treatment
should be continued for at least 10 to 14 days at home or 4 to 5 appointments
in dentist’s office.
Can teeth return to their previous
conditions after whitening ?
The
teeth will not take on their previous colors and always look whiter than
before. However, a “reinforcement”
treatment could be necessary in 1 to 2 years’ time, depending on patients’
habits and oral hygiene status.
What is tooth whitening and how is it
carried out ?
Tooth
whitening is a procedure to lighten teeth and remove stains and
discolorations occurring within
the structure
(enamel-dentine
layers) of the teeth. At present there are two different methods of tooth
whitening:
The
first method, which is self-practicable, involves the following steps: * Your
dentist will take an impression of your teeth and have a thin rubber mould
prepared, that you will put around your teeth. * The patient puts the
whitening product into the special mould and applies it onto the teeth to be
whitened for at least 6 to 8 hours daily (preferentially during sleep). *
Termination of the treatment in 1 to 2 weeks on the average.
The
second method is carried out in a dentist’s office and involves the
following: * The whitening substance is applied to the teeth by an
experienced dentist * A laser or UV light is shone onto the relevant teeth
for a certain time to enhance the action of the agent. * The whitening effect
is seen immediately at the end of the procedure. Although at-home procedures
are more effective, the choice will depend on factors such as the extent of
discoloration, desired time-span of the treatment and dentist’s opinion.
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