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Dental fluorosis is a common [2] disorder, characterized by hypomineralization of tooth enamel caused by ingestion of excessive fluoride during enamel formation. [3][needs update] It appears as a range of visual changes in enamel [4] causing degrees of intrinsic tooth discoloration, and, in some cases, physical damage to the teeth.
e. Japanese manga has developed a visual language or iconography for expressing emotion and other internal character states. This drawing style has also migrated into anime, as many manga stories are adapted into television shows and films. In manga the emphasis is often placed on line over form, and the storytelling and panel placement differ ...
Bottom teeth of a seven-year-old, showing primary teeth (left), a lost primary tooth (middle), and a permanent tooth (right) Tooth eruption in humans is a process in tooth development in which the teeth enter the mouth and become visible. Current research indicates that the periodontal ligaments play an important role in tooth eruption.
Human tooth development. Tooth development or odontogenesis is the complex process by which teeth form from embryonic cells, grow, and erupt into the mouth. For human teeth to have a healthy oral environment, all parts of the tooth must develop during appropriate stages of fetal development.
Parts of a tooth, including the enamel (cross section). Tooth enamel is one of the four major tissues that make up the tooth in humans and many animals, including some species of fish. It makes up the normally visible part of the tooth, covering the crown. The other major tissues are dentin, cementum, and dental pulp.
In orthodontics, a malocclusion is a misalignment or incorrect relation between the teeth of the upper and lower dental arches when they approach each other as the jaws close. The English-language term dates from 1864; [1] Edward Angle (1855–1930), the "father of modern orthodontics", [2][3][need quotation to verify] popularised it.
The goddess has been associated with sexuality, love, and fertility. [5][6][7] Xi Shi (西施), born 506 BC, was one of the Four Great Beauties of ancient China. [8] Physical attractiveness is the degree to which a person's physical features are considered aesthetically pleasing or beautiful. The term often implies sexual attractiveness or ...
File:Human tooth diagram-en.svg. Size of this PNG preview of this SVG file: 512 × 408 pixels. Other resolutions: 301 × 240 pixels | 602 × 480 pixels | 964 × 768 pixels | 1,280 × 1,020 pixels | 2,560 × 2,040 pixels. This is a file from the Wikimedia Commons. Information from its description page there is shown below.