Tobacco use is known as a major risk factor for oral and other cancers. All tobacco products, including cigarettes, cigars, pipe tobacco, chewing tobacco, and snuff, contain toxins (poisonous substances), carcinogens (cancer-causing agents), and nicotine (an addictive substance). Each tobacco product is linked to an increased risk for specific cancers:
|Cigarettes||Cigarettes, the most common form of tobacco used, cause 90 percent of all lung cancer deaths, according to the American Lung Association. In addition, about 80 percent of people with oral cancers use tobacco. Cigarettes contain more than 60 cancer-causing agents.|
|Cigars and pipes||Cigars and pipes are often perceived as the less harmful way to smoke tobacco. However, even when not inhaling, cigar and pipe smokers are at increased risk for cancer of the oral cavity and lungs. Pipe smokers also are at increased risk for lip cancers in areas where the pipestem rests. In addition, cigars take longer to burn and contain more tobacco than cigarettes, increasing the amount of secondhand smoke exposure.
Cigar smoking can also lead to tooth loss, jaw bone loss, and other periodontal diseases.
|Chewing tobacco and snuff||Spit tobacco, also known as chewing tobacco and snuff, are forms of tobacco that are put between the cheek and gum. Chewing tobacco can be in the form of leaf tobacco (which is packaged in pouches), or plug tobacco (which are packaged in "brick" form). Snuff is a powdered form of tobacco, usually sold in cans. The nicotine is released from the tobacco as the user "chews."
Although chewing tobacco and snuff are considered "smokeless" tobacco products, harmful chemicals including nicotine are ingested. More than 28 cancer-causing chemicals have been found in smokeless tobacco.
Chewing tobacco and snuff can cause cancer in the cheek, gums, and lips. Like a pipe, cancer often occurs where the tobacco is held in the mouth. Cancer caused by "smokeless" tobacco often begins as leukoplakia (a condition characterized by a whitish patch that develops inside the mouth or throat) or erythroplakia (a condition characterized by a red, raised patch that develops inside the mouth). Other problems associated with chewing tobacco and snuff include periodontal disease, tooth discoloration, and bad breath, among others.
Cigars became a trend in the 1990s, attracting the young and the old. Although perceived as less detrimental to one's health, cigars actually pose the same risk as cigarettes for oral cancer. Although many cigar smokers do not inhale, the risk for oral, throat, and esophageal cancers is the same as for cigarette smokers. Consider these facts:
The American Cancer Society and the American Lung Association offer the following tips to persons who use tobacco products and are trying to quit:
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