What is teeth Bleaching?

Dental bleaching (teeth bleaching) are also known as tooth whitening, and is a common procedure in general dentistry but more specifically in cosmetic dentistry. A child’s teeth are generally whiter and smaller than the adult teeth that follow which become darker over the years because of the teeth’s mineral structure as the enamel becomes less porous. An adult’s teeth also change colour because they get stained by bacterial pigments, tobacco and food. There is also certain medication that can cause teeth to stain and reduces the brilliance of the enamel on the tooth.

Teeth bleaching can be done by either one of two methods: Bleaching gel and laser bleaching. At-home whitening is a bleaching gel applied to the tooth using thin guard trays. The oxidizing agents in the gel lightens the shade of the tooth and penetrates the porosities in the enamel structure and over a period of time the dentil layer (underneath the enamel) is also bleached.

Laser bleaching is done at a dentists’ office and uses light energy to accelerate the process of bleaching. This whitening effect can last for a couple of months but can be decreased by smoking and the ingestion of dark coloured liquids like coffee, tea and red wine.

Internal staining in the tooth can also cause the tooth to discolour but can be remedied with internal bleaching. If a patient’s teeth are heavily stained or the tetracycline damage is present on the patient’s teeth, and the whitening is ineffective there are other methods utilised to whiten the teeth. Bonding is when a thin coat of composite material is applied to the front of a person’s tooth after which it is cured with a laser to mask the staining. A veneer can also mask tooth discolouration.

Teeth bleaching (teeth whitening) can be done affordably at Dr. Cerny, a cosmetic dental specialist based in Johannesburg. For more information on painless dental surgery make a booking at Johannesburg dentistry by Dr Cerny .

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