Mitosis is the process by which a eukaryotic cell separates the chromosomes in its cell nucleus into two identical sets in two nuclei. It is generally followed immediately by cytokinesis, which divides the nuclei, cytoplasm, organelles and cell membrane into two cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of the cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell. This accounts for approximately 10% of the cell cycle.
Mitosis occurs only in eukaryotic cells and the process varies in different species. For example, animals undergo an "open" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi such as Aspergillus nidulans and Saccharomyces cerevisiae (yeast) undergo a "closed" mitosis, where chromosomes divide within an intact cell nucleus.[1] Prokaryotic cells, which lack a nucleus.
Teeth cleaning is the removal of dental plaque and tartar from teeth to prevent cavities, gingivitis, and gum disease. Severe gum disease causes at least one-third of adult tooth loss.
Tooth Decay is the most common global disease affecting every family. Over 80% of cavities occur inside pits and fissures on chewing surfaces where brushing cannot reach food left trapped after every meal or snack and saliva or fluoride have no access to neutralise acid and remineralise demineralised tooth.
Fissure sealants dentists apply over grooves in chewing surfaces of back teeth, block food being trapped and halt the decay process. An elastomer strip has been shown to force sealant deeper inside opposing chewing surfaces at the same time and can also force fluoride toothpaste inside chewing surfaces before brushing to remineralise demineralised teeth.
Since before recorded history, a variety of oral hygiene measures have been used for teeth cleaning. This has been verified by various excavation
Mitosis occurs only in eukaryotic cells and the process varies in different species. For example, animals undergo an "open" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi such as Aspergillus nidulans and Saccharomyces cerevisiae (yeast) undergo a "closed" mitosis, where chromosomes divide within an intact cell nucleus.[1] Prokaryotic cells, which lack a nucleus.
Tooth Decay is the most common global disease affecting every family. Over 80% of cavities occur inside pits and fissures on chewing surfaces where brushing cannot reach food left trapped after every meal or snack and saliva or fluoride have no access to neutralise acid and remineralise demineralised tooth.
Fissure sealants dentists apply over grooves in chewing surfaces of back teeth, block food being trapped and halt the decay process. An elastomer strip has been shown to force sealant deeper inside opposing chewing surfaces at the same time and can also force fluoride toothpaste inside chewing surfaces before brushing to remineralise demineralised teeth.
Since before recorded history, a variety of oral hygiene measures have been used for teeth cleaning. This has been verified by various excavation