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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] 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.
Medication. Paracetamol (acetaminophen), ibuprofen [ 6 ] Frequency. 3.6 billion (2016) [ 7 ] Tooth decay, also known as cavities or caries, [ a ] is the breakdown of teeth due to acids produced by bacteria. [ 6 ] The cavities may be a number of different colors, from yellow to black. [ 1 ]
Dentistry. Tooth discoloration is abnormal tooth color, hue or translucency. [1] External discoloration is accumulation of stains on the tooth surface. Internal discoloration is due to absorption of pigment particles into tooth structure. [2][3] Sometimes there are several different co-existent factors responsible for discoloration.
Periodontal disease, also known as gum disease, is a set of inflammatory conditions affecting the tissues surrounding the teeth. [5] In its early stage, called gingivitis, the gums become swollen and red and may bleed. [5] It is considered the main cause of tooth loss for adults worldwide. [7][8] In its more serious form, called periodontitis ...
Description. Yellow form, front view. Arothron nigropunctatus is a small sized fish which grows up to 33 cm (1 ft) length. [2] Its body is oval shape, spherical and relatively elongated. The skin is not covered with scales. The fish has no pelvic fin and no lateral line. The dorsal fin and the anal fin are small, symmetric and located at the ...
Triodon macropterus ( common name the threetooth puffer and the black-spot keeled pufferfish) is a tetraodontiform fish, the only living species in the genus Triodon and family Triodontidae. [ 1][ 2] Other members of the family are known from fossils stretching back to the Eocene. [ 3] The threetooth puffer was first scientifically described by ...
Enamel hypoplasia is a defect of the teeth in which the enamel is deficient in quantity, [1] caused by defective enamel matrix formation during enamel development, as a result of inherited and acquired systemic condition (s). It can be identified as missing tooth structure and may manifest as pits or grooves in the crown of the affected teeth ...
The shiny, triangular black teeth have a deep attraction for those who comb the beach hoping to find them. A shark loses between 20,000 to 30,000 teeth, Shelton said.