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Dental fluorosis is a common [2] disorder, characterized by hypocalcification of tooth enamel caused by ingestion of excessive fluoride during enamel formation. [3] [needs update] Dental fluorosis appears as a range of visual changes in enamel [4] causing degrees of intrinsic tooth discoloration, and, in some
In case of any disturbance, the rest periods are prolonged and occur close to one another. Consequently, the line of Retzius appears broader and much more prominent, often presenting a brownish colour under the microscope. The neonatal line is the darkest band, which represents the disrupted enamel formation due to the stress of being born.
At Night" (German: "Nachts") is a very short story by Franz Kafka written in his notebooks. [1] As with many of the pieces in his notebooks, the tale is more of a segment than a story. The narrator reflects on the emptiness that can engulf one during nighttime. Yet, at the same time, where each person sleeps, there has been a rich history.
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This condition can cause teeth to be discolored (most often a blue-gray or yellow-brown color) and translucent, giving teeth an opalescent sheen. [ 2 ] [ 3 ] [ 8 ] [ 5 ] [ 9 ] Teeth are also weaker than normal, making them prone to rapid wear, breakage, and loss.
'Twas the Night Before Christmas History The poem, originally titled A Visit or A Visit From St. Nicholas , was first published anonymously on Dec. 23, 1823, in a Troy, New York newspaper called ...
The 18 new players for the 48th season of the reality series include a stunt performer, a pizzeria owner, and the first contestant with a speech impediment in the show's history.
The enamel is fragile, the teeth appear yellow or brown, and surface stains build up more readily. [1] Dentinogenesis imperfecta is a defect of dentin formation, and the teeth may be discolored yellow-brown, deep amber or blue-grey with increased translucency. [1] Dentinal dysplasia is another disorder of dentin.