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  2. Tooth enamel - Wikipedia

    en.wikipedia.org/wiki/Tooth_enamel

    The enamel organ, including the dental papilla, and ameloblasts function similarly. [55] The variations of enamel that are present are infrequent but sometimes important. Differences exist, certainly, in the morphology, number, and types of teeth among animals.

  3. Enamel organ - Wikipedia

    en.wikipedia.org/wiki/Enamel_organ

    The enamel organ, also known as the dental organ, is a cellular aggregation seen in a developing tooth and it lies above the dental papilla. [1] The enamel organ which is differentiated from the primitive oral epithelium lining the stomodeum. The enamel organ is responsible for the formation of enamel, initiation of dentine formation ...

  4. Human tooth - Wikipedia

    en.wikipedia.org/wiki/Human_tooth

    Humans have four types of teeth: incisors, canines, premolars, and molars, which each have a specific function. The incisors cut the food, the canines tear the food and the molars and premolars crush the food. The roots of teeth are embedded in the maxilla (upper jaw) or the mandible (lower jaw) and are covered by gums.

  5. Dental anatomy - Wikipedia

    en.wikipedia.org/wiki/Dental_anatomy

    Dental anatomy is a field of anatomy dedicated to the study of human tooth structures. The development, appearance, and classification of teeth fall within its purview. (The function of teeth as they contact one another falls elsewhere, under dental occlusion.) Tooth formation begins before birth, and the teeth's eventual morphology is dictated ...

  6. Cementoenamel junction - Wikipedia

    en.wikipedia.org/wiki/Cementoenamel_junction

    Anatomical terminology. [edit on Wikidata] In dental anatomy, the cementoenamel junction (CEJ) is the location where the enamel, which covers the anatomical crown of a tooth, and the cementum, which covers the anatomical root of a tooth, meet. Informally it is known as the neck of the tooth. [1] The border created by these two dental tissues ...

  7. Dentinoenamel junction - Wikipedia

    en.wikipedia.org/wiki/Dentinoenamel_junction

    It is also known as the amelo - dentinal junction, [2] or ADJ. The dentinoenamel junction is thought to be of a scalloped structure which has occurred as an exaptation of the epithelial folding that is undergone during ontogeny. This scalloped exaptation has then provided stress relief during mastication and a reduction in dentin-enamel sliding ...

  8. Amelogenesis - Wikipedia

    en.wikipedia.org/wiki/Amelogenesis

    Amelogenesis. Amelogenesis is the formation of enamel on teeth and begins when the crown is forming during the advanced bell stage of tooth development after dentinogenesis forms a first layer of dentin. Dentin must be present for enamel to be formed. Ameloblasts must also be present for dentinogenesis to continue.

  9. Enamel knot - Wikipedia

    en.wikipedia.org/wiki/Enamel_knot

    The enamel knot is a signaling center of the tooth that provides positional information for tooth morphogenesis and regulates the growth of tooth cusps.The enamel knot produces a range of molecular signals from all the major signaling families, such as Fibroblast Growth Factors (FGF), Bone morphogenetic proteins (BMP), Hedgehog (Hh) and Wnt signals.

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