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  2. Tooth discoloration - Wikipedia

    en.wikipedia.org/wiki/Tooth_discoloration

    Examples include iron (black stain), iodine (black), copper (green), nickel (green) and cadmium (yellow-brown). [3] Antibiotics. Tetracycline and its derivatives are capable of intrinsic discoloration (discussed below). However other antibiotics may form insoluble complexes with calcium, iron and other elements that cause extrinsic staining. [11]

  3. Tooth whitening - Wikipedia

    en.wikipedia.org/wiki/Tooth_whitening

    The perception of tooth colour is multi-factorial. Reflection and absorption of light by the tooth can be influenced by a number of factors including specular transmission of light through the tooth; specular reflection at the surface; diffuse light reflection at the surface; absorption and scattering of light within the dental tissues; enamel mineral content; enamel thickness; dentine colour ...

  4. Dental erosion - Wikipedia

    en.wikipedia.org/wiki/Dental_erosion

    One of the physical changes can be the colour of teeth. Dental erosion can lead to two major tooth colour change – the first being a change of colour that usually happens on the cutting edge of the central incisors. This causes the cutting edge of the tooth to become transparent. [17] A second sign is a yellowish tint on the eroded tooth.

  5. Dental material - Wikipedia

    en.wikipedia.org/wiki/Dental_material

    They cannot adhere to tooth tissue due to the presence of resin, which can make it shrink on polymerisation. They therefore require bonding materials. They release low levels of fluoride, so cannot act as a fluoride reservoir. They have high staining susceptibility; uptake of oral fluid causes them to show staining soon after placement.

  6. Remineralisation of teeth - Wikipedia

    en.wikipedia.org/wiki/Remineralisation_of_teeth

    Additionally, excessive starchy foods (such as bread, pasta, and crackers), fruits and milk products consumed frequently can cause the growth of dental plaque and bacteria. [29] Therefore, a diet low in sugar and proper maintenance of oral hygiene is the best way to promote and maintain sound tooth structure for an individual.

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  8. Komodo dragons have iron-tipped teeth, new study shows - AOL

    www.aol.com/komodo-dragons-iron-tipped-teeth...

    Analysis showed that iron was already present when the teeth erupted from the gum tissue, and was also present despite Ganus having a very different diet to wild Komodo dragons, he added.

  9. Cetylpyridinium chloride - Wikipedia

    en.wikipedia.org/wiki/Cetylpyridinium_chloride

    Cetylpyridinium chloride is known to cause tooth staining in approximately 3 percent of users. [14] The Crest brand has noted that this staining is actually an indication that the product is working as intended, as the stains are a result of bacteria dying on the teeth. [ 15 ]