Figure 5-17. - Adenocarcinoma.
the abnormal growth and spread of cancer cells.This growth or spread of malignant tumors from one area to another is called metastasis. Modern research concerning the development of neoplasms has been linked to the following factors:
Chemicals (carcinogens, such as found in tobacco smoke and alcoholic beverages)
Overexposure to X-rays
Smokeless Tobacco Smokeless tobacco, such as chewing tobacco or snuff, may play a role in the development of oral precancerous lesions on the oral mucosa and can result in increased tooth loss from periodontal disease. The area where the user of smokeless tobacco places it in his mouth may leave a smooth or scaly white patch called leukoplakia or snuff-dipper's keratosis (fig. 5-18). Irritation of the oral mucosa occurs because 90 percent of the nicotine of smokeless tobacco is directly absorbed through the oral mucosa, which then goes directly into the blood stream. The effects and damage of nicotine pose a serious health hazard. Many smoking cessation programs are available through naval hospitals and clinics. Dental patients who wish to get assistance from this addiction can be referred to these programs.Continue Reading