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  2. Tooth discoloration - Wikipedia

    en.wikipedia.org/wiki/Tooth_discoloration

    Congenital erythropoietic porphyria (Gunther disease) is a rare congenital form of porphyria, and may be associated with red or brown discolored teeth. [1] [12] Hyperbilirubinemia during the years of tooth formation may make bilirubin incorporate into the dental hard tissues, causing yellow-green or blue-green discoloration. [1]

  3. Dental fluorosis - Wikipedia

    en.wikipedia.org/wiki/Dental_fluorosis

    Dental fluorosis is a common [2] disorder, characterized by hypocalcification of tooth enamel caused by ingestion of excessive fluoride during enamel formation. [3] [needs update] Dental fluorosis appears as a range of visual changes in enamel [4] causing degrees of intrinsic tooth discoloration, and, in some

  4. Dentinogenesis imperfecta - Wikipedia

    en.wikipedia.org/wiki/Dentinogenesis_imperfecta

    Discoloured teeth - teeth may be amber, brown, blue or opalescent; Bulbous shape to the tooth crown due to cervical constriction; Tooth wear/Non-carious tooth surface loss (NCTSL) - due to the poorly mineralised dentine, the enamel of the tooth is unsupported and subsequently shears or chips off as it is subjected to biting forces. This exposes ...

  5. Human tooth - Wikipedia

    en.wikipedia.org/wiki/Human_tooth

    Bottom teeth of a seven-year-old, showing primary teeth (left), a lost primary tooth (middle), and a permanent tooth (right) Tooth eruption in humans is a process in tooth development in which the teeth enter the mouth and become visible. Current research indicates that the periodontal ligaments play an important role in tooth eruption.

  6. Tooth enamel - Wikipedia

    en.wikipedia.org/wiki/Tooth_enamel

    The enamel on primary teeth has a more opaque crystalline form and thus appears whiter than on permanent teeth. The large amount of mineral in enamel accounts not only for its strength but also for its brittleness. [6] Tooth enamel ranks 5 on Mohs hardness scale (between steel and titanium) and has a Young's modulus of 83 GPa. [4]

  7. Hydnellum peckii - Wikipedia

    en.wikipedia.org/wiki/Hydnellum_peckii

    Hydnellum peckii, aka Bleeding Tooth fungus, Gaspereau Mountain (Wolfville) Nova Scotia, Canada, 16 August 2023 In deposit , the spores appear brown. Viewing them with a light microscope reveals finer details of their structure: they are roughly spherical but end abruptly in a small point, their surfaces are covered with small, wart-like ...

  8. Idiopathic osteosclerosis - Wikipedia

    en.wikipedia.org/wiki/Idiopathic_osteosclerosis

    Idiopathic osteosclerosis, also known as enostosis or dense bone island, is a condition which may be found around the roots of a tooth, usually a premolar or molar. [2] It is usually painless and found during routine radiographs as an amorphous radiopaque (light) area around a tooth.

  9. Tooth decay - Wikipedia

    en.wikipedia.org/wiki/Tooth_decay

    A lesion that appears dark brown and shiny suggests dental caries were once present, but the demineralization process has stopped, leaving a stain. Active decay is lighter in color and dull in appearance. [14] As the enamel and dentin are destroyed, the cavity becomes more noticeable. The affected areas of the tooth change color and become soft ...