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  2. Concrescence - Wikipedia

    en.wikipedia.org/wiki/Concrescence

    Concrescence is an uncommon developmental condition of teeth where the cementum overlying the roots of at least two teeth fuse together without the involvement of dentin. [1] [2] Usually, two teeth are involved with the upper second and third molars being most commonly fused together. [3]

  3. Tooth ankylosis - Wikipedia

    en.wikipedia.org/wiki/Tooth_ankylosis

    Tooth ankylosis refers to a fusion between a tooth and underlying bony support tissues. In some species, this is a normal process that occurs during the formation or maintenance of the dentition. [1] By contrast, in humans tooth ankylosis is pathological, whereby a fusion between alveolar bone and the cementum of a tooth occurs.

  4. Tooth fusion - Wikipedia

    en.wikipedia.org/wiki/Tooth_fusion

    Mader’s “two-tooth” rule can help distinguish between tooth fusion and gemination. If the double tooth is counted as two teeth and the number of teeth in the mouth is normal, then the double tooth is likely a fused tooth. However, in some rare cases a tooth is fused to an extra tooth in which case counting the double tooth as two teeth ...

  5. Cleft lip and cleft palate - Wikipedia

    en.wikipedia.org/wiki/Cleft_lip_and_cleft_palate

    Tooth development can be delayed with increasing severity of CLP. Some of the dental problems affect the primary teeth, but most of the problems arise after the permanent teeth erupt. Problems may include fused teeth, missing teeth, and extra teeth erupting behind normal teeth. Missing teeth or extra teeth are both normal occurrences.

  6. 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.

  7. 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 ...

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Hyperdontia - Wikipedia

    en.wikipedia.org/wiki/Hyperdontia

    Occasionally, additional teeth may also arise from developmental anomalies like fusion or gemination. Fusion occurs when two tooth buds fuse together, creating a single, larger tooth. Gemination involves the incomplete division of a single tooth bud into two teeth. In some cases, these anomalies may take the form of the appearance of extra teeth.