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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 Once widespread, the belief is now obsolete, having been superseded by more scientific rationales.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]
Pierre Fauchard, known as the father of modern dentistry, was one of the first to reject the idea that worms caused tooth decay and noted that sugar was detrimental to the teeth and gingiva. [170] In 1850, another sharp increase in the prevalence of caries occurred and is believed to be a result of widespread diet changes. [160]
Fluoride is a mineral that occurs naturally in water, soil and air that has been demonstrated to prevent dental cavities, or tooth decay. Here is what you need to know about fluoridation of ...
The ctinidia lie mainly within the branchial siphon, through which the animal pumps the water that passes over the gills. The two siphons are very long and protrude from the posterior end of the animal. Where they leave the end of the main part of the body, the siphons pass between a pair of calcareous plates called pallets.
Researchers looked at rates of tooth decay and hospital admissions for tooth extractions.
"The most common way is there are a number of labs that will send the dentist or patient a kit with preserving liquid to keep the tissue alive," Sears said. "They just send it to a lab and ...
This allows water from the ocean to enter into the crust of the earth where it is heated by the magma. The increasing pressure and temperature forces the water back out of these openings, on the way out, the water accumulates dissolved minerals and chemicals from the rocks that it encounters.
Hence, "helminthology" is the study of parasitic worms. When a human or an animal, such as a dog or horse, is said to "have worms", it means that it is infested with parasitic worms, typically roundworms or tapeworms. Deworming is a method to kill off the worms that have infected a human or animal by giving anthelmintic drugs.