How is a teeth whitening performed?

3d video of Clínica Médico Dental Pardiñas ( on tooth whitening, a dental aesthetic procedure used to try to recover the natural color of the teeth.

The external teeth whitening is now one of the simplest and conservative aesthetic resources. Although it is called external, what is trying to be whitened is the dentin. Tooth crown in its structure consists of enamel (outermost part), dentin (intermediate layer) and dental pulp (internal structure). The enamel has no color, it is translucent as glass. Dentin is what really gives us the color of teeth.

Are the teeth white?
We should know that the intrinsic inner dentin color is determined genetically, it is therefore an innate characteristic of each of us, as it is the color of our skin. They can have an infinite variety of colors within the range of white (orange-yellow, gray-green, gray-pink or reddish-brown) and within each of these groups, different gradations of intensity. The professional will determine the base color, as it is not modified by any whitening. What can be achieved is a clarification to a greater or lesser extent of the base color.

To explain it in a simple way, we are always talking about bleaching the base color that is located inside the tooth, as external stains such as those from smoking or other stains on the tooth surface, can easily be removed with a regular dental cleaning. We must differentiate between stains on the tooth surface due to external agents and the intrinsic color of the tooth. This is why cleaning and whitening are two different dental procedures.

The teeth whitening procedure:
Every case has to be studied in advance to avoid giving false expectations. Also mention that the intensity of bleaching depends on each patient and his/her age (having a better response in younger patients) and generally responds well in almost all teeth. In many cases of tetracycline-related tooth color (with brown or gray stripes) these gray-brown bands will not disappear, they will only become less marked. Whitening is not as “bleaching” or painting a wall.

To perform an external tooth whitening, impressions are first taken from the patient’s mouth.
From these molds a transparent splint of soft acrylic that has recorded the fingerprints of the teeth to adapt perfectly to them is made.
This serves as a vehicle to apply a whitening gel to the teeth. This bleaching product can have different compositions depending on the degree of whitening that is wanted to achieve

The external teeth whitening is done without anesthesia, because is important to perceive sensibilities, as it is actually the tooth what is going to tell us how far we can whiten. It is not worth to a have very white teeth but having them hypersensible. If during the procedure much sensitivity is felt, we will have to stop and continue in another session, or even stop the treatment because definitely the tooth does not allow us to go further.

At the end of treatment and the next day teeth and the surrounding gum can and do become slightly sensitive and even occasionally may require taking painkillers the day of treatment, but we must say that these sensitivities, if any, will be temporary and of low intensity if the correct protocols are followed.

When will I see the results of whitening?
Once the whitening is performed, in a few days teeth will continue whitening and the final color obtained will remain unalterably for a 2-7 years period, depending on each patient. Although color after these years can lose intensity, the color will never be like the beginning. In the event that recurs a little, a simply shorter whitening session than the original can be performed. In the mentioned cases, whitening tooth paste can be used as a reinforcement for a certain period. Always under professional control.

#teethwhitening #dentalbleaching #toothwhitening

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