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Cigarette use and oral health

from The Tribune

It is common knowledge that cigarette smoking is the single major cause of cancer and cardiovascular disease in the United States. It contributes to a large number of premature deaths each year in the U.S., but still about 25 percent of American adults continue to smoke. One of the main components in cigarettes is nicotine, and it is accepted as one of the most addictive drugs in the country. Nicotine is a naturally occurring liquid and is readily absorbed from tobacco smoke in the lungs. In addition to nicotine, cigarette smoke is composed of many gases (mainly carbon monoxide) and tar. It also is filled with known carcinogens (cancer causing agents). The absorption of nicotine through the lungs of cigarette smokers is widely accepted. However, its absorption through the mouth tissues under the alkaline conditions found in cigar, pipe and smokeless tobacco use, is less publicized. more

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