Oral Cancer Exam

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 ask your dentist or dental hygienist.

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Testimonials

Dr. Leong is an amazing dental professional. I've been seeing her for a number of years and she has always been effective, responsive, personable and caring. She managed my Invisalign process and did a great job from start to finish. She's very gentle so pain is never in the equation during my visits with her. She's also just a wonderful person. I consider her both my dentist and my friend. I would recommend her to anyone who's looking for a skilled dental professional.

Linda S. June 10, '17

I have been consistently happy with how Dr. Leong and her staff have cared for my teeth. AND, I've had A Lot of Work for Dr. Leong to do with my teeth! Shortly after my first cleanings, I had cavities to fill, then a molar cracked and I had to get a crown, which Dr. Leong did really well (better than my last dentist for sure!)... Given these positive experiences, I trusted Dr Leong to create Veneers for 8 of my upper front teeth, to totally transform my smile! I am very happy with my smile, get lots of compliments, and have confidence that the work will last me a long time (probably longer than my teeth would on their own... She not only did expert work to prepare my veneers and my teeth, but she also went above and beyond to make sure everything fit and felt right for me.

Matt Apr. 9, '15

Dr. Leong is hands down the best dentist I've ever had. She is extremely friendly and knowledgeable. She educated me about the right way to take care of my teeth without being pushy or judgmental. She explained everything she was doing very thoroughly so that I understood my own health better. She never made me feel rushed and she was never pushy trying to sell me dental work I didn't need, which has happened to me many times with other dentists. She and her staff were top notch.

My appointment was exactly on time and Anna at the front desk had already gotten my insurance information without me having to fill out anything. Everything was very well organized and we started my exam right away.

S. Wang Jan. 06, 15

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Wanda S. Leong, DDS 291 Geary Street, Suite 300 San Francisco, CA. 94102 Phone: 415-433-6825
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