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  2. Human tooth development - Wikipedia

    en.wikipedia.org/wiki/Human_tooth_development

    The occlusion, which is the arrangement of teeth and how teeth in opposite arches come in contact with one another, continually affects the formation of periodontal ligament. This perpetual creation of periodontal ligament leads to the formation of groups of fibers in different orientations, such as horizontal and oblique fibers.

  3. Tooth eruption - Wikipedia

    en.wikipedia.org/wiki/Tooth_eruption

    Non-eruption of non-ankylosed teeth occurs due to an eruption mechanism that has failed leading to a posterior unilateral/bilateral open bite. [28] Infra occlusion is the primary hallmark of PFE. Primary teeth are most commonly affected and normally all teeth distal to the most mesially affected tooth will show characteristics of this disease.

  4. Humans Have A Third Set of Teeth—And New Medicine May Help ...

    www.aol.com/humans-third-set-teeth-medicine...

    “The number of teeth varied through the mutation of just one gene,” he said. “If we make that the target of our research, there should be a way to change the number of teeth (people have).”

  5. Doctors say that keeping your kid's baby teeth could save ...

    www.aol.com/news/2017-03-28-doctors-advice-kids...

    According to a recent study, baby teeth contain an abundance of stem cells, a very special type of cell that can potentially grow replacement tissue in the body and cure a number of diseases.

  6. Tooth impaction - Wikipedia

    en.wikipedia.org/wiki/Tooth_impaction

    Because impacted teeth do not erupt, they are retained throughout the individual's lifetime unless extracted or exposed surgically. Teeth may become impacted because of adjacent teeth, dense overlying bone, excessive soft tissue or a genetic abnormality. Most often, the cause of impaction is inadequate arch length and space in which to erupt.

  7. Dental anatomy - Wikipedia

    en.wikipedia.org/wiki/Dental_anatomy

    Usually, there are 20 primary ("baby") teeth and 32 permanent teeth, the last four being third molars or "wisdom teeth", each of which may or may not grow in. Among primary teeth, 10 usually are found in the maxilla (upper jaw) and the other 10 in the mandible (lower jaw). Among permanent teeth, 16 are found in the maxilla and the other 16 in ...

  8. Hyperdontia - Wikipedia

    en.wikipedia.org/wiki/Hyperdontia

    Hyperdontia is the condition of having supernumerary teeth, or teeth that appear in addition to the regular number of teeth (32 in the average adult). They can appear in any area of the dental arch and can affect any dental organ .

  9. Animal tooth development - Wikipedia

    en.wikipedia.org/wiki/Animal_tooth_development

    The variations usually lie in the morphology, number, development timeline, and types of teeth. [8] However, some mammals' teeth do develop differently than humans'. In mice, WNT signals are required for the initiation of tooth development. [9] [10] Rodents' teeth continually grow, forcing them to wear down their teeth by gnawing on various ...