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Warning: caries is contagious

September 10 2005

Dentists from the University of Southern California found that susceptibility to dental caries has a genetic origin. If your relative was so poisonous saliva that corroded even leather and metals, then beware - caries will not hesitate to look to you.

Different people have different structure of oligosaccharides, which are contained in saliva. The composition of these elements for some people does not give the bacteria to settle on the teeth, while others - on the contrary, as anointed with honey. In connection with the opening of the scientists have even developed a test that the composition of saliva will accurately predict the development of dental caries in children.

But Swedish scientists have found a surprising relationship between memory functions and the existence of human teeth. As it turned out, people who for one reason or another have lost several teeth, is less potent than mentally record what they did at one time or another, or to determine where and at what point they were.

"It turned out that the teeth are not only to chew food, but also to preserve and maintain our brain functions," - said one of the study's authors, Professor University of Umea dentist Ian Begdahl.

Particularly harmful for memory forcible removal of teeth. Then the person begins to forget quite often two different things. Swedish experts presented the results of research on human beings. The experiment involved one thousand 962 persons aged 35 to 90 years. Scientists have found that if you remove molars in humans, as well as in animals, memory worsens, according to

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