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  2. Tooth discoloration - Wikipedia

    en.wikipedia.org/wiki/Tooth_discoloration

    Teeth have a thin enamel layer on the outer surface. The enamel layer is whiter and semitransparent, and contributes blue, pink green tints to the tooth color. [ 6 ] The underlying dentin layer is darker than enamel, yellow-brown in color, and less transparent. [ 6 ]

  3. Clear aligners - Wikipedia

    en.wikipedia.org/wiki/Clear_aligners

    Clear aligners are orthodontic devices that are a transparent, plastic form of dental braces used to adjust teeth. [1] Clear aligners have undergone changes, making assessment of effectiveness difficult. [2] A 2014 systematic review concluded that published studies were of insufficient quality to determine effectiveness. [3]

  4. Stomiidae - Wikipedia

    en.wikipedia.org/wiki/Stomiidae

    The transparency is due to a nanoscale structure of hydroxyapatite and collagen, while the tips of the transparent teeth of deep-sea dragonfish were found to emit more red light in seawater [12] which further contributes to its transparency as red light is close to invisible at the depths that the deep-sea dragonfish reside due to a lack of ...

  5. Teeth whitening: What is it, how to do it safely and how to ...

    www.aol.com/lifestyle/teeth-whitening-100042380.html

    Teeth whitening strips are easy-to-use, peel-and-stick strips that you wear on your teeth for 15 to 30 minutes each day. "Most kits come with a 30-day supply and are relatively easy to use," says ...

  6. 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.

  7. Remineralisation of teeth - Wikipedia

    en.wikipedia.org/wiki/Remineralisation_of_teeth

    In children and adults when teeth are subjected to the alternating stages of demineralisation and remineralization, the presence of fluoride intake encourages remineralization and ensures that the enamel crystals that are laid down are of improved quality. [18] Fluoride is commonly found in toothpastes.

  8. Dental fluorosis - Wikipedia

    en.wikipedia.org/wiki/Dental_fluorosis

    Frequently included in this classification are teeth showing no more than about 1 – 2mm of white opacity at the tip of the summit of the cusps, of the bicuspids or second molars. Mild: 3: The white opaque areas in the enamel of the teeth are more extensive but do involve as much as 50% of the tooth. Moderate: 4

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