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  2. Tooth loss - Wikipedia

    en.wikipedia.org/wiki/Tooth_loss

    Tooth loss is normal for deciduous teeth (baby teeth), when they are replaced by a person's adult teeth. Otherwise, losing teeth is undesirable and is the result of injury or disease, such as dental avulsion, tooth decay, and gum disease. The condition of being toothless or missing one or more teeth is called edentulism. Tooth loss has been ...

  3. Leech - Wikipedia

    en.wikipedia.org/wiki/Leech

    The majority of freshwater leeches are found in the shallow, vegetated areas on the edges of ponds, lakes and slow-moving streams; very few species tolerate fast-flowing water. In their preferred habitats, they may occur in very high densities; in a favourable environment with water high in organic pollutants, over 10,000 individuals were ...

  4. Tooth resorption - Wikipedia

    en.wikipedia.org/wiki/Tooth_resorption

    Resorption of the root of the tooth, or root resorption, is the progressive loss of dentin and cementum by the action of odontoclasts. [4] Root resorption is a normal physiological process that occurs in the exfoliation of the primary dentition.

  5. Regeneration (biology) - Wikipedia

    en.wikipedia.org/wiki/Regeneration_(biology)

    Regeneration in biology is the process of renewal, restoration, and tissue growth that makes genomes, cells, organisms, and ecosystems resilient to natural fluctuations or events that cause disturbance or damage. [1] Every species is capable of regeneration, from bacteria to humans.

  6. How the Rise of Farming Rotted Ancient Humans' Teeth - AOL

    www.aol.com/news/rise-farming-rotted-ancient...

    According to their findings, farming changed much more about human physiology than just diet.DNA and RNA, the genetic material that makes up How the Rise of Farming Rotted Ancient Humans' Teeth ...

  7. Deciduous - Wikipedia

    en.wikipedia.org/wiki/Deciduous

    Plants with deciduous foliage have advantages and disadvantages compared to plants with evergreen foliage. Since deciduous plants lose their leaves to conserve water or to better survive winter weather conditions, they must regrow new foliage during the next suitable growing season; this uses resources which evergreens do not need to expend.

  8. Humans Have a Third Set of Teeth. New Medicine May Help ... - AOL

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

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  9. Teeth-cleaning twig - Wikipedia

    en.wikipedia.org/wiki/Teeth-cleaning_twig

    When compared to toothbrushes, teeth-cleaning twigs have several differentiations such as: More ecological in its life-cycle. Dependence from external supplier, if lack of access to the respective trees. Some twigs need moistening with water if they become dry, to ensure the end is soft.