Colour alterations can be caused by multiple reasons: caries, developmental alterations, discoloration due to ageing, deposits of substances on the teeth surface (tobacco, tea, coffee, wine, etc.), old fillings, traumas and certain medication (tetracycline).
For this reason, before dental whitening treatment, it is advisable to have clean tooth surfaces, show correct hygiene, healthy gums and absence of caries, as well as taking into account relative and absolute contraindications.
At the Eva Berroeta cosmetic dentistry, we have two methods of whitening:
Specifically, it consists of the application of a whitening gel in a transparent splint, intimately adapted to the teeth, in order to oxidise the pigments accumulated on the surface of the enamel, without damaging the dental structure.
As a result of this oxidation, oxygen is eliminated in the form of water, sometimes resulting in some sensitivity after removing the splint. This sensitivity is temporary as the teeth are quickly re-hydrated by saliva.