Posts for tag: oral cancer
A half million people are diagnosed every year with oral cancer. While other cancers are more prevalent, oral cancer is among the most dangerous with only a fifty percent five-year survival rate.
A major reason for this low rate is because this fast growing cancer is difficult to detect early — diagnosis comes far too often after the disease has already well advanced. In an effort to detect cancer earlier many dentists visually screen for oral abnormalities during checkups, especially patients over fifty, tobacco or heavy alcohol users, patients with a family history of cancer or a medical history of exposure to the sexually transmitted human papilloma virus, HPV-16.
If they detect an abnormality, the dentist often refers the patient to an oral surgeon or other specialist for a possible biopsy. In this procedure the surgeon removes a sample of the abnormal tissue, which is then examined microscopically for cancer cells. A biopsy remains the most effective way to diagnose oral cancer.
Because of the disease's aggressive nature, many dentists lean to the side of caution when referring patients for biopsy. As a result 90% of oral biopsies reveal no cancer. Reducing the number of biopsy referrals is highly desirable, especially for the patient undergoing the procedure. Tissue samples tend to be large to ensure complete detection of any cancer cells. Depending on the size and location of the sample, there may be a risk for loss of function or disfigurement.
A new screening tool using a sample of a patient's saliva could help reduce the number of biopsy referrals. Besides DNA, saliva also contains dormant genes called biomarkers that activate in response to the presence of a specific disease. This particular saliva test identifies those biomarkers for oral cancer if they're present.
A sample with a low score of biomarkers indicates no cancer present (with a statistical confidence of 99%). A medium or high score indicates cancer may be present, but only a biopsy can determine for sure. Using this test, dentists might be able to reduce the number of biopsy referrals and instead be able to employ watchful waiting in certain cases. Because of its simplicity and non-invasiveness, saliva screening could help identify oral cancer earlier.
You probably know practicing healthy dietary and lifestyle habits can help prevent tooth decay and periodontal (gum) disease. But good habits could also lower your risk for a more dangerous type of disease — oral cancer.
There are several risk factors for oral cancer, including those you can't do much about like your genetic makeup or unknown elements in the environment. But there are factors you can influence with your actions.
You're probably familiar with the links between tobacco use (both smoked and smokeless) and oral cancer. But excessive alcohol use could also increase your risk, as can risky sexual behavior that could expose you to human papilloma virus (HPV) 16.
And what you eat — or don't eat — could also influence your cancer risk. Research over the last half century has uncovered a link between diet and cancer. Cancer development seems to begin with damage to DNA, the genetic material that “tells” each of our cells what it is and what it does in the body. Substances called carcinogens found in the environment — including the foods we eat — can damage our DNA and open the door for cancer to development.
But some foods also contain elements that protect our DNA from carcinogenic damage. Some of these are known as antioxidants, which protect cells from unstable molecules called free radicals. You'll find antioxidants, as well as other protective substances like fiber, vitamins and lycopene in plant-based foods, particularly fruits and vegetables.
Eating a plant-based diet also means you'll eat fewer foods that contribute to the rise of free radicals like saturated fat, animal protein and nitrates (a chemical that occurs in some food processing). A healthy diet, along with quitting tobacco use and moderating alcohol consumption, will help not only preventing decay or gum disease, it will also drastically lower your risk for oral cancer.
If you would like more information on oral cancer prevention, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Diet and Prevention of Oral Cancer.”
No one wants to hear the word “cancer.” But thanks to advances in detection and treatment, the disease increasingly can be stopped in its earliest stages when it's most treatable and outcomes are most favorable. Oral cancer accounts for a relatively small 3% of cancers in men and 2% in women, but early detection rates are lagging. Our office screens for oral cancer as part of your regular checkups. Knowing some of the signs and symptoms can help you monitor as well.
The main areas where oral carcinomas (cancers) occur are:
- the tongue (most common location, particularly the sides and on the floor of the mouth),
- the lip (especially the lower one),
- the oral cavity (the mouth), and
- the pharynx (back of mouth and throat).
Most oral cancers are preceded by surface changes (lesions) of the oral membranes. In the “precancerous” stage, white or red patches start forming and a non-healing ulcer may appear. The most common locations on the tongue for this to occur are on the sides and underneath on the floor of the mouth. Lip cancers typically develop on the lower lip, usually in people with a history of sun exposure. There has often been prior damage at the site such as scaling and crusting.
Be aware that oral cancers can be mistaken for cold and canker sores, ulcers, minor infections, and even irritations caused by biting or certain types of food. If lesions don't heal within two or three weeks, there's a higher likelihood that they are cancerous.
An in-office examination includes the following:
- visual inspection of face, lips, neck and mouth;
- inspection of sides and underneath of tongue and floor of mouth using gauze to gently manipulate the tongue;
- palpation of the floor of the mouth, sides of neck and glands to detect unusual lumps; and
- an “open wide and say ‘Aah’” examination of the back of your throat.
There are some risk factors for oral cancer that can't be controlled, such as a family history, age and race. But awareness, monitoring for potential signs and seeking prompt attention are always key ingredients in protecting your oral health!
If you would like more information about oral cancer detection, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Oral Cancer.”
For years, even as tobacco use began to decline and disappear in most settings, professional baseball seemed one of the few exceptions. Now, the tide is finally turning. Recently, the legendary right-hand pitcher Curt Schilling revealed that he had been treated for oral cancer — and said that his chewing tobacco habit was to blame. “I’ll go to my grave believing that was why I got [cancer],” Schilling told the Boston Globe.
Schilling isn’t the only former player whose oral cancer is blamed on smokeless tobacco. Tony Gwynn, Hall of Famer and beloved coach, recently passed away from oral cancer at the age of 54. His death led to players pledging to give up the habit. But many still use “dip” or “snuff,” thinking perhaps it’s not so bad after all.
In fact, nothing could be further from the truth. With nicotine as its active ingredient, chewing tobacco can be just as addictive as cigarettes. Not only is nicotine addictive, it also increases heart rate and blood pressure, constricts the arteries, and affects the body in other ways. In addition to nicotine, chewing tobacco contains about 30 other chemicals known to cause cancer.
Tobacco use of any kind is a major risk factor for oral cancer. While it isn’t as well-known as some other types of cancer, oral cancer can be just as deadly. About 43,000 people in the U.S. are diagnosed with it each year — and the 5-year survival rate is just 57%. One reason for the relatively low survival rate is that oral cancer isn’t usually detected until it has reached a later stage, when it’s much harder to treat.
What can you do to reduce your risk for oral cancer? Clearly, you should stop using tobacco products of any kind. Moderating your intake of alcohol, and eating more plant foods and less red meat can also have an impact. And don’t forget to have regular dental checkups: cancer’s warning signs can often be recognized in an oral examination — and early detection can boost survival rates to 80-90 percent.
How does Schilling feel about chewing tobacco now? “I lost my sense of smell, my taste buds for the most part. I had gum issues, they bled, all this other stuff,” he told the Globe. “I wish I could go back and never have dipped. Not once.”
If you have questions about oral cancer or cancer prevention, contact us or schedule an appointment for a consultation. You can learn more in the Dear Doctor magazine articles “Chewing Tobacco” and “Diet and Prevention of Oral Cancer.”