According
to research conducted by the American Cancer Society, more than 30,000
cases of oral cancer are diagnosed each year. More than 7,000 of these
cases result in the death of the patient. The good news is that oral
cancer can easily be diagnosed with an annual oral cancer exam, and effectively treated when caught in its earliest stages.
Oral
cancer is a pathologic process which begins with an asymptomatic stage
during which the usual cancer signs may not be readily noticeable. This
makes the oral cancer examinations performed by the dentist
critically important. Oral cancers can be of varied histologic types
such as teratoma, adenocarcinoma and melanoma. The most common type of
oral cancer is the malignant squamous cell carcinoma. This oral cancer
type usually originates in lip and mouth tissues.
There are many different places in the oral cavity and maxillofacial region in which oral cancers commonly occur, including:
- Lips
- Mouth
- Tongue
- Salivary Glands
- Oropharyngeal Region (throat)
- Gums
- Face
Reasons for oral cancer examinations
It
is important to note that around 75 percent of oral cancers are linked
with modifiable behaviors such as smoking, tobacco use and excessive
alcohol consumption. Your dentist can provide literature and education
on making lifestyle changes and smoking cessation.
When
oral cancer is diagnosed in its earliest stages, treatment is generally
very effective. Any noticeable abnormalities in the tongue, gums,
mouth or surrounding area should be evaluated by a health professional
as quickly as possible. During the oral cancer exam, the dentist and dental hygienist will be scrutinizing the maxillofacial and oral regions carefully for signs of pathologic changes.
The following signs will be investigated during a routine oral cancer exam:
- Red patches and sores – Red patches on the floor of the mouth, the front and sides of the tongue, white or pink patches which fail to heal and slow healing sores that bleed easily can be indicative of pathologic (cancerous) changes.
- Leukoplakia – This is a hardened white or gray, slightly raised lesion that can appear anywhere inside the mouth. Leukoplakia can be cancerous, or may become cancerous if treatment is not sought.
- Lumps – Soreness, lumps or the general thickening of tissue anywhere in the throat or mouth can signal pathological problems.
Oral cancer exams, diagnosis and treatment
The
oral cancer examination is a completely painless process. During the
visual part of the examination, the dentist will look for abnormality
and feel the face, glands and neck for unusual bumps. Lasers which can
highlight pathologic changes are also a wonderful tool for oral cancer
checks. The laser can “look” below the surface for abnormal signs and
lesions which would be invisible to the naked eye.
If
abnormalities, lesions, leukoplakia or lumps are apparent, the dentist
will implement a diagnostic impression and treatment plan. In the event
that the initial treatment plan is ineffective, a biopsy of the area
will be performed. The biopsy includes a clinical evaluation which will
identify the precise stage and grade of the oral lesion.
Oral
cancer is deemed to be present when the basement membrane of the
epithelium has been broken. Malignant types of cancer can readily
spread to other places in the oral and maxillofacial regions, posing
additional secondary threats. Treatment methods vary according to the
precise diagnosis, but may include excision, radiation therapy and
chemotherapy.
During bi-annual check-ups, the
dentist and hygienist will thoroughly look for changes and lesions in
the mouth, but a dedicated comprehensive oral cancer screening should be
performed at least once each year.
If you have any questions or concerns about oral cancer, please contact our practice.