Light up your smile
Over the years, teeth lose the natural colour that makes a smile so attractive, but darkening or staining can also be caused for other reasons. For most cases, the best solution is whitening, a simple technique that can be carried out in the dental surgery or at home, under the supervision of a specialist. The surface of the tooth is not a uniform colour. Its tones vary from one part of the tooth to another, with the part closest to the gum typically being a darker tone than the rest of the tooth. Although we call this treatment "tooth whitening", it is in fact not the most accurate term for it, as what really takes place is a lightening of the colour of the enamel. The result is whiter teeth that preserve the tonal variances within each tooth.
This technique can be carried out at the specialist´s surgery or at home. In-surgery bleaching is faster than at home, usually requiring one or two visits of 40 to 60 minutes per session. Depending on the state of the teeth, sometimes the effect achieved at the surgery is reinforced with further treatment at home.
In-surgery whitening involves a three-step process to clarify the colour of the enamel: protection of the gum area that borders the tooth; application of the whitening substance; and activation of the whitening process. Once he has protected the gums and lips, the specialist spreads a concentrated whitening solution over the teeth and the solution is then activated in one of several ways, depending on the type of whitening.
For home whitening, a plastic mould is created that fits snugly to the teeth that are to be whitened. This mould is filled with a bleaching solution and placed on the teeth for a certain amount of time as specified by the dentist. The length of time will vary according to the concentration of the solution and the type of whitening selected. The process is repeated daily with the final results visible in two to three weeks.