Teeth Whitening Edinburgh

Teeth may be darkened by a buildup of surface stains (extrinsic staining), which hides the natural tooth color; or the tooth itself may discolor (intrinsic staining).

Causes of extrinsic staining include:

  • Dental plaque: although usually virtually invisible on the tooth surface, plaque may become stained by chromogenic bacteria such as Actinomyces species.

  • Calculus: neglected plaque will eventually calcify, and lead to the formation of a hard deposit on the teeth, especially around the gumline. The color of calculus varies, and may be grey, yellow, black or brown

  • Tobacco: tar in smoke from tobacco products (and also smokeless tobacco products) tends to form a yellow-brown-black stain around the necks of the teeth above the gumline

  • Betel chewing.

  • Certain foods and drinks. food-goods and vegetables rich with carotenoids or xanthonoids.[citation needed] Ingesting colored liquids like sports drinks, cola, coffee, tea, and red wine can discolor teeth.

  • Certain topical medications. Chlorhexidine (antiseptic mouthwash) binds to tannins, meaning that prolonged use in persons who consume coffee, tea or red wine is associated with extrinsic staining (i.e. removable staining) of teeth.

  • Metallic compounds. Exposure to such metallic compounds may be in the form of medication or other environmental exposure. examples include iron (black stain), iodine (black), copper (green), nickel (green), cadmium (yellow-brown).

For this kind of change of colour, best option is combine Scaling and polish with Teeth whitening.

Reference:

https://en.wikipedia.org/wiki/Tooth_whitening


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