Scientists describe the prehistoric weapons unearthed in England
International Online News: Scientists recently released a study showed that early before the invention of electric drills and anesthesia, early humans began to drill holes in the teeth by the method to treat tooth decay. April 6, according to Reuters reports, the French scientists at the University poitiers Robert Markey Yaqie Li said that as there was no metal tools used now, 9000 years ago, the tools people use to drill is the tip of a flint .
Reported that, through the excavation work in Pakistan, Maji Ya Cherry and an international research team unearthed in a tomb in the early adult molars 9, found the holes to be drilled out. This grave dates back to 7500 years to 9000 years ago. Maji Ya Botticelli in “Nature” magazine published an article, said: “These findings of early farming culture medium to long term there is a primitive dentistry provide evidence.”
In the remains of the 9 adults, 4 women, two men, the other 3 can not determine the gender. Research team found that they were a total of 11 teeth drilled holes. One person had three teeth drilled, and another person was also a tooth drilled twice. Maji Ya Celi said, in addition to four teeth showed signs related to drilling and tooth decay, indicating that when people use the drilling method may alleviate the toothache or dental treatment. Research team said the teeth in this region has been continued this practice drill 1,500 years.
Teeth is known as another person’s “identity card”, the ID information recorded on the many issues that reflect the human body; in turn, some of the physiological activities of the human body will have an impact on the teeth.
Occurrence of emotional stress molar
When the unconscious man to escape the psychological pressure, or sleep in the dream will molars, usually there will be unconscious, “stiff upper lip” look. Affiliated Stomatological Hospital, Peking University had 80 of 16 patients 45 years of age and 80 patients without bruxism bruxism as control person, the results show that: introverted, depressed, especially emotional instability, tension and other personality is easy to bruxism important factor in the pathogenesis. The incidence of oral diseases in the causes of bruxism is not more important, psychological factors often take priority.
Harmful to the gums emotional
If dental disease, will affect the absorption capacity of the stomach to induce stomach disease. Studies have shown that the excitement of the harmful health of gums, angry people every day occurrence of periodontal disease to be higher than the average 43%, the study also showed that participation in social activities and express their feelings appropriately helps gingival health . At least one good friend, chances of people suffering from periodontal disease than people without friends by 30%. Survey data show that pregnant women with mild periodontitis, the occurrence of the risk of preterm delivery 3 times higher than normal pregnant women; suffering from moderate to severe periodontitis in pregnant women is 10 times.