Effects of Tobacco on Oral Health

In the United States alone, tobacco use is responsible for one in five deaths, primarily from cardiovascular diseases, lung cancer, other types of cancer and respiratory diseases. In North America, approximately 75% of all oral cancers are associated with tobacco use and alcohol consumption. At least 80% of oral cancer patients are smokers, and oral cancer patients who continue smoking after treatment are much more likely to develop another head or neck cancer.

Tobacco use is also linked to other types of oral health problems, ranging from serious (increased risk of periodontal disease) to social (bad breath) including:
Gingivitis
Periodontal disease
Increased severity of periodontal disease
Gum recession
Sticky tar deposits on teeth
Brown staining on teeth
"Smoker's palate" (a red inflammation on the roof of the mouth)
Delayed wound healing
Tooth decay (possibly a secondary effect due to large amounts of sugar in smokeless products or less frequent dental check-ups)
Tooth abrasion (possibly due to the sand and grit in processed tobacco; also seen in pipe smokers, from clenching the pipe between teeth)
Diminished blood flow to oral area
Candidasis
Sinusitis
Altered taste
Bad breath
Black hairy tongue oral lesions
Precancerous changes in soft tissue

Tobacco use is also related to many other problems, including cancers of the larynx, esophagus, pancreas and bladder, chronic obstructive pulmonary disease, chronic bronchitis and other respiratory diseases, gastric ulcers, low birth weight babies and spontaneous abortions. All tobacco products, cigarettes, smokeless/spit tobacco, cigars, and pipes, are associated with oral cancer.

Logic alone indicates that tobacco use has effects on teeth, gums, tissues and bones. Cigarettes and other types of tobacco products contain many irritants, toxins, and carcinogens. Pipe and cigar tobacco contain sulfur. More than one-fifth of the content of some brands of smokeless tobacco is sugar. Smokeless tobacco also contains over 2,000 chemicals, many of which have been directly related to causing cancer.