Переведите текст пожалуйста , очень срочно. Tooth decay or caries is

Переведите текст пожалуйста , очень безотлагательно. Tooth decay or caries is known to be probably the commonest disease of civilization. It is due to acid formation on the tooth surface, dissolving away the enamel and dentine to produce a cavity. Acid is produced by the action of certain bacteria on food remaining on the teeth after meals. These bacteria appears to be normal residents of the mouth and are otherwise quite harmless. All types of food are classified into three distinct groups protein, fat and carbohydrate. Of these, only refined carbohydrate is reported to cause caries as it is the only food which can be turned into acid by the bacteria concerned. Refined carbohydrates are sugar and white flour, so anything containing these can give rise to caries. Such foods are cake, biscuits, bread, jam and sweets. The longer the carbohydrate stays on the teeth, the longer the duration of acid production. Thus sweet fluids, such as tea with sugar, which are washed offquot; the teeth immediately by saliva are not a significant cause of caries. Sticky carbohydrate is the major cause. Because of its adherent nature it clings to the teeth for a very long time, during which it is being transformed into the acid responsible for dissolving enamel and dentine. Coffee and other sweets, cakes, biscuits, white bread and jam are foremost amongst these sticky carbohydrates which arc the cause of caries. Our modern diet is known to be of such a nature that refined carbohydrate is consumed nearly every time something is eaten; and the teeth are attacked by acid on each of these occasions. If snacks containing sticky carbohydrates arc frequently taken between meals there will be a corresponding increase in the number of acid attacks on the teeth. Thus it is evident that excessive consumption of snacks or sweets between mealsi is one of the most important causes of caries.