Teeth whitening is a bleaching process that lightens stains in the enamel and dentine of

your teeth, to give a brighter tooth colour.

What are the benefits of teeth whitening?
Main benefit of teeth whitening is ‘the confidence of a bright white smile’. When you are
going on job interview or a first date or making a big presentation or approaching a
milestone and want to look your best. Whatever it may be, whitening is an easy way to
boost your self-confidence. Knowing your smile looks its best makes you want to smile more
and when you smile, the whole world tends to smile right back.

Are all teeth suitable for whitening?
Teeth whitening may be done on live teeth and teeth that have had root canal treatment.
Before having your teeth whitened, our dentist will check to make sure your teeth are
suitable to be treated.
In some cases, treatment may be difficult or ineffective, for example with staining caused
during tooth formation by certain antibiotics. Tooth whitening may make your old fillings or
crowns look darker after treatment, so it is very important to be checked and advised of this
before you proceed. Areas of your teeth may whiten at different rates depending on the
location of the stain, hardness of the tooth and the intensity of the stain.

How can your dentist whiten your teeth?
Tooth whitening can be done at home (using a customised tray system designed by your
dentist), or in the dental office.
Your dentist can provide a more effective tooth whitening system for use at home than the
‘do-it-yourself’ kits available at pharmacies. The dentist makes an impression for a model of
your teeth. A thin, custom fitted, clear plastic tray that fits over your teeth is made. At home
you place a whitening gel into the tray, and place the tray over your teeth. This is worn for
15 minutes up to two hours daily or at night. Results are usually seen after the first day, but
maximum whitening may take 10-14 days. Your dentist will check on your progress.
Your dentist can also whiten your teeth at the dental office, using similar ingredients to the
home use whitening. Your gums are protected and then whitening gel is applied to the teeth
and may be activated with a special light for up to 30 to 60 minutes divided in 15minute
sessions. Gel breaks down into stain-fighting radicals that break the molecular bonds
making up stains on your teeth. The LED accelerator light shining on whitening gel helps
these stain fighting radicals whiten faster. One big advantage of in-office whitening is you
can see the result in just one visit.

Can teeth with root fillings be whitened?
Yes. Root filled teeth are treated by placing a bleach inside the tooth. A protective rubber
shield is placed over the tooth and the tooth is partly opened into where the root filling has
been placed. The inside is cleaned and a bleaching material is placed inside. The tooth is
temporarily resealed and left 7 – 10 days. Sometimes two or three applications may be

Is teeth whitening safe?
Yes. Clinical studies have shown that whitening your teeth with carbamaperoxide or
hydrogen peroxide under the supervision of a dental professional is safe for both teeth and

Are there side effects of home or dental office treatment?
Sometimes people will experience increased tooth and gum sensitivity during treatment,
which goes away shortly after stopping the treatment. The structure of the tooth is not
changed by the process.

How long does teeth whitening last?
Over time your teeth can lose some of their whiteness. Whitening treatments help to
reduce existing stains, but through consumption of coffee, red wine and other coloured
foods or just through natural aging, your teeth eventually become discoloured again.
Maintenance whitening can help combat recurring discoloration.


teeth whitening


zoom whitening before and after