Search results
Results From The WOW.Com Content Network
The idea of a tooth worm is a theory of the cause of dental caries, periodontitis and toothaches. Once widespread, the belief is now obsolete, having been superseded by more scientific rationales. It was supposed that the disease was caused by small worms resident within the tooth, eating it away. [1]
Tooth development is commonly divided into the following stages: the initiation stage, the bud stage, the cap stage, the bell stage, and finally maturation. The staging of tooth development is an attempt to categorize changes that take place along a continuum; frequently it is difficult to decide what stage should be assigned to a particular ...
A Sumerian text from 5000 BC describes a "tooth worm" as the cause of caries. [165] Evidence of this belief has also been found in India, Egypt, Japan, and China. [160] Unearthed ancient skulls show evidence of primitive dental work. In Pakistan, teeth dating from around 5500 BC to 7000 BC show nearly perfect holes from primitive dental drills ...
Perdurantism or perdurance theory is a philosophical theory of persistence and identity. [1] In metaphysics the debate over persistence currently involves three competing theories—one three-dimensionalist theory called "endurantism" and two four-dimensionalist theories called "perdurantism" and "exdurantism". For a perdurantist, all objects ...
Pierre Fauchard (French pronunciation: [pjɛʁ foʃaʁ]; 2 January 1679 – 21 March 1761) [1] was a French physician, credited as being the "father of modern dentistry". [2] He is widely known for writing the first complete scientific description of dentistry, Le Chirurgien Dentiste ("The Surgeon Dentist"), published in 1728. [2]
Empty-Calorie Foods and Drinks: The Bottom Line. Unfortunately, empty calories are everywhere in the food system, and consuming a lot of them can work against your health goals.
The teeth of Ardipithecus ramidus in particular showed that the species was probably an omnivore. The upper canines are less sharp than a chimpanzee’s, possibly due to them being smaller in general. [6] The canines in chimpanzees can be particularly sharp as they are often shaped through use and wear against the lower teeth. [6]
This process begins during tooth development after the initial formation of dentin (dentinogenesis), the layer beneath the enamel. [2] The inner enamel epithelium (IEE), a layer of cells within the developing tooth, plays a crucial role by signaling the differentiation of specialized cells called ameloblasts , [ 3 ] which then secrete the ...