Two pathologic conditions are observed with increasing frequency among the children of this generation after the age of 2 years. They are an enlargement of the cervical glands, as well as of the adenoid tissue within the pharynx, and the occurrence of carious teeth. Among the school children of our large cities, according to medical school inspectors, about one in five, at least, will be found to have glandular enlargements in the cervical region, either anteriorly or posteriorly. Something more than one in ten will be found to be a mouth-breather, because of overgrowth of the adenoid tissue at the back of the mouth. Nearly one in four will be found to be suffering from marked deterioration of the teeth that causes interference with mastication and at the same time proves a fruitful culture medium for micro-organisms of various kinds which are sure to do harm in the lower digestive
MASTICATION AND CHILDREN'S HEALTH.. JAMA. 1905;XLV(13):924–925. doi:10.1001/jama.1905.02510130044007
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