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  2. Enamel pearl - Wikipedia

    en.wikipedia.org/wiki/Enamel_pearl

    Enamel pearls can be composed of different dental tissues (enamel, dentin, etc.) and can thus be classified based on this composition. Enamel-dentin pearls make up the largest proportion pearls and consist of a core of tubular dentin surrounded by enamel. Large enamel-dentin pearls may contain pulp within and are termed enamel-dentin-pulp ...

  3. Ectopic enamel - Wikipedia

    en.wikipedia.org/wiki/Ectopic_enamel

    Ectopic enamel is an abnormality in the formation of enamel. It is tooth enamel that is found in an unusual location ( ectopia ), such as at the root of a tooth. [ 1 ] Enamel pearls are a type of ectopic enamel.

  4. Tooth enamel - Wikipedia

    en.wikipedia.org/wiki/Tooth_enamel

    Tooth enamel is one of the four major tissues that make up the tooth in humans and many animals, including some species of fish. It makes up the normally visible part of the tooth, covering the crown .

  5. Dentifrice - Wikipedia

    en.wikipedia.org/wiki/Dentifrice

    Red tooth powder from India. Tooth powder was historically used among the Romans to clean and whiten teeth, to fix them when loose, to strengthen the gums, and to assuage toothache. [2] [3] [4] They made tooth powder from a variety of substances, such as the bones, hoofs, and horns of certain animals; [2] crabs; oyster [5] and murex shells; and ...

  6. Hydroxyapatite - Wikipedia

    en.wikipedia.org/wiki/Hydroxyapatite

    Remineralisation of tooth enamel involves the reintroduction of mineral ions into demineralised enamel. [21] Hydroxyapatite is the main mineral component of enamel in teeth. [22] During demineralisation, calcium and phosphorus ions are drawn out from the hydroxyapatite.

  7. 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 ...