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What Occurs In Your Mouth During A Dental Care Examination

During a dentistry examination, the dentist examines the mouth mucosa (soft tissues) for any abnormalities or pathology (including oral cancer), the teeth for tooth decay (dental caries) or defects, the gum tissues for periodontal (gum) disease, the neck for swollen lymph nodes, the amount of plaque, tartar (dental calculus), and debris on teeth, as well as the need to replace any missing teeth or dental prostheses.

The dental examination begins with a complete dental care and medical history, including medications the patient currently is taking. The skin of the face and neck is examined for any abnormalities, especially pigment changes. The lymph nodes in front and behind the ears, under the floor of the mouth and chin, and the midline of the neck, sides, and back of the neck are palpated to determine if any swelling or tenderness is present.

Inside of the mouth, the lips, cheeks, gums, and roof of the mouth are inspected and palpated. During this process, the tip of the tongue is placed on the roof of the mouth just behind the upper teeth for inspection of the front floor of the mouth and sides of the tongue.

The back floor of the mouth, the area behind the lower wisdom teeth, and the back sides of the tongue are inspected by grasping the tip of the tongue with a small gauze sponge and pulling the tongue forward and toward the opposite side of the mouth.

To inspect the back of the throat, soft palate, and tonsil area (sides of the throat), the tongue is depressed with a dental mirror or tongue blade and then a deep breath is taken by the patient.

To detect swelling on the floor of the mouth, the area inside the mouth is felt with the finger of one hand while a finger of the other hand feels below the chin. Salivary gland enlargement, saliva flow, or xerostomia (dry mouth) are determined by milking the major salivary glands to assess the quantity and consistency of saliva.

Today's dentist has many analytic tools available to pinpoint dental and oral diseases. The basic tools are the dental instruments, lights, and radiographs (X-rays). Depending upon the dentist and the individual's dental needs, additional diagnostic tests are available. Testing for essential proteins and buffering capacity can evaluate the protective ability of saliva.

To determine mouth caries risks, microbiological testing of saliva can measure the level of caries-producing organisms. Periodontal susceptibility tests, which test for the DNA of gum disease-producing organisms, can be performed to assess an individual's risk for gum disease.

If removable dentures are present, they are checked for bite, retention, stability, and overall fit. Dental impressions or models also may be taken to study the mouth and tooth structures to initiate fabrication of prostheses. Photographs may be exposed for a variety of reasons, including before and after treatment comparisons.

The level of oral hygiene and home care practices are assessed and reviewed. Recommendations for home care devices and products may be made. Instruction and methods for maintaining a good oral hygiene regimen can also take place.

Once basic information about oral health status is gathered, the dentist will be better able to discuss dental treatment alternatives that are available.

By Denise J. Fedele, DMD, MS

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Find a Dentist To Evaluate Your Risk Factors For Oral Cancer

Oral and oropharyngeal cancers are malignancies that include the lips, tongue, lining of the cheeks (buccal mucosa), floor of the mouth, gum (gingiva), the area behind the lower wisdom teeth (retromolar trigone), the roof of the mouth (hard and soft palates), the back of mouth and throat (oropharynx), and the sides of the throat (tonsil areas).

Oral and oropharyngeal cancers are most often diagnosed in older adults (average age at diagnosis is between 60 and 63), with over 95% of the oral cancer cases occurring after the age of 45. Men are diagnosed with oral and oropharyngeal cancer twice as often as women. Over the past several decades, the overall number of oral and oropharyngeal cancers has not changed; however, the number of men being diagnosed with the disease is decreasing and the number of women with the disease is increasing.

All forms of tobacco and excessive use of alcohol have been identified as major risks factors for oral and oropharyngeal cancers, and are suspected to account for 75% of all oral and oropharyngeal cancers in the United States. Sun exposure is a risk factor for lip cancer, while smokeless (snuff or spit) tobacco increases the risk for cancers inside the lips and cheek. Other risk factors for oral and oropharyngeal cancer are vitamin A deficiency and Plummer-Vinson Syndrome (a very rare iron deficiency).

The American Cancer Society estimates that 7,800 people will die because of oral or oropharyngeal cancer in the year 2000. Overall, people surviving five years after a diagnosis of oral and oropharyngeal cancer have shown little improvement; half of the people diagnosed with this disease survive five years. Deaths due to oral and oropharyngeal cancer vary greatly with the stage (spread) of the cancer at diagnosis. Oral and oropharyngeal cancers that are detected and treated early, and are localized, have greatly improved survival compared to those that have spread.

Early localized oral and pharyngeal cancers often are not bothersome and therefore go undetected until the cancer has spread. About half of oral and oropharyngeal cancers have spread to the lymph nodes (spread to the neck) at the time of diagnosis or treatment. Three sites within the mouth are high-risk for the development of oral and oropharyngeal cancer: the floor of the mouth, the sides of the tongue, and the soft palate complex (soft palate, inside the retromolar trigone, and tonsil area).

Detection of an oral and oropharyngeal cancer also identifies an individual who is at high risk for developing or having a cancer of the respiratory system and upper digestive tract (larynx, lung, and esophagus).

Warning signs and symptoms of oral and oropharyngeal cancer:

• A mouth sore that does not heal
• A lump or thickened mass in mouth or neck
• A red or white patch in mouth
• A sore throat or feeling that something is caught
• Voice change
• Difficulty chewing or swallowing
• Difficulty moving the jaw or tongue
• Numbness
• Swelling
• Loosening of teeth
• Weight loss

Pain may not be present with early oral and oropharyngeal lesions. Traumatic oral lesions will resolve or greatly improve after the cause of the trauma is removed (such as a sharp tooth or denture). A biopsy, to rule out or confirm a malignancy, is indicated if an oral lesion persists after two weeks. A dentist and/or physician should evaluate all suspicious lesions.

By Denise J. Fedele, DMD, MS