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  2. Tooth eruption - Wikipedia

    en.wikipedia.org/wiki/Tooth_eruption

    To replace damaged and missing teeth (mixed and permanent) Frequency. 3 stages per lifetime. Tooth eruption is a process in tooth development in which the teeth enter the mouth and become visible. It is currently believed that the periodontal ligament plays an important role in tooth eruption. The first human teeth to appear, the deciduous ...

  3. Permanent teeth - Wikipedia

    en.wikipedia.org/wiki/Permanent_teeth

    The first of the permanent teeth to erupt are the permanent first molars, right behind the last 'milk' molars of the primary dentition. These first permanent molars are important for the correct development of a permanent dentition. Up to thirteen years of age, 28 of the 32 permanent teeth will appear.

  4. Human tooth development - Wikipedia

    en.wikipedia.org/wiki/Human_tooth_development

    For human teeth to have a healthy oral environment, all parts of the tooth must develop during appropriate stages of fetal development. Primary (baby) teeth start to form between the sixth and eighth week of prenatal development, and permanent teeth begin to form in the twentieth week. [1] If teeth do not start to develop at or near these times ...

  5. Human tooth - Wikipedia

    en.wikipedia.org/wiki/Human_tooth

    These teeth are the only ones in the mouth until a person is about six years old. At that time, the first permanent tooth erupts. This stage, during which a person has a combination of primary and permanent teeth, is known as the mixed stage. The mixed stage lasts until the last primary tooth is lost and the remaining permanent teeth erupt into ...

  6. Deciduous teeth - Wikipedia

    en.wikipedia.org/wiki/Deciduous_teeth

    The roots of primary teeth provide a pathway for the permanent teeth to erupt. The primary teeth are important for the development of the child's speech, for the child's smile and play a role in chewing of food, although children who have had their primary teeth removed (usually as a result of dental caries or dental injuries) can still eat and ...

  7. Tooth ankylosis - Wikipedia

    en.wikipedia.org/wiki/Tooth_ankylosis

    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.

  8. 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 ...

  9. Occlusion (dentistry) - Wikipedia

    en.wikipedia.org/wiki/Occlusion_(dentistry)

    The permanent premolars erupt ~9–12 years of age, replacing the primary molars. The erupting premolars are smaller than the teeth they are replacing and this difference in space between the primary molars and their successors (1.5mm for maxillary, 2.5mm for mandibular [7]), termed Leeway Space. This allows the permanent molars to drift ...

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